https://mytinycafe.com/

An PWA primarily for my wife and my daughter. They can order their hot chocolate and their coffee as if they were going to grab something at a fancy café downtown, but instead it's at home and I'm the barista. It is quite nice to have for when my wife comes back from work and want something specific, or when we are waiting for the visit of a few friend, they can order exactly the available beverages and everything is ready when they're here.

It was also a good playground for me to implement Web Push notifications (to never miss new orders).

It's a basic Nuxt 3 app with Appwrite as the backend with rough edges, but much enough for our household use !

If you want to spam my phone with notifications, please visit my café : https://mytinycafe.com/alix

Checkout Sugar - A Dev Team That Never Stops.

Autonomous AI development for Claude Code. Delegate tasks, Sugar executes continuously—building features, fixing bugs, shipping code.

https://sugar.roboticforce.io/

https://github.com/cdnsteve/sugar

Pretty pumped, 22 stars and growing!

I'm working on porting KiCad to the browser. It's a lot of sweat and tears, multithreading issues and some more sweat. I've updated a port of WxWidgets and now I support all the features KiCad needs with ~200 tests.

Right now I have a build that loads in the browser, but I really want to have "multithreading" which means workers in the web. One can use asyncify with emscripten to translate blocking C++ to WASM, but that transition is not perfect, right now I'm debugging a bug where there's a race condition that halts all execution and the main thread runs in an infinite loop waiting for the workers to stand up. I guess I'll have a few of those ahead.

The main goal is to 1. just have fun 2. use yjs as a collab backend so multiple people can edit the same PCB. This will probably work with pcbnew, KiCad's layout editor, since it has a plugin system and AFAIK I can do the sync layer there. For the rest ( schematic, component editor etc. ) I'll have to figure out something.. KiCad does not sync automatically if you modify a file, I'll have to do some lifting there.

Anyway, it's a lot of fun, I really want this thing to exist, I'm hoping that I won't run into a "wellll, this is just not going to work" kind of issue in the end.

Purposefully not building software but cold calling 100 businesses in my niche. Starting at 1 call per day for 10 days, then 2 calls per day for 10 days, then 2 conversations per day for 10 days, and scaling up until I reach 100 calls. Exposure therapy as well as product discovery wrapped in one.

I'm working on https://techposts.eu - Hacker News for Europe.

Focused on all the interesting and exciting happenings in tech here, from AI to defence to deeptech, and posting the most interesting job openings too. Did you know Europe had two space launch startups? I didn't until I started this project!

Feedback very welcome :)

https://play.google.com/store/apps/details?id=com.blazingban...

Completely free, no ads, no in-app purchases and no accounts / network required offline voice transcription.

I have also built the macOS/Windows/Linux versions which I'll also make free to download and available on my site soon (https://blazingbanana.com/).

iOS version is built and works (extremely well), just waiting for the Apple Developer signup process to complete.

Big shout out to https://github.com/mybigday/whisper.rn and https://huggingface.co/ggerganov/whisper.cpp/tree/main for making this even possible.

Any suggestions are welcome.

I'm building a web-based local multiplayer party game platform. It's like a lovechild of Jackbox Games and Mario Party: https://gamingcouch.com. We just won silver at the Big Indie Pitch competition as well!

- Currently in free Early Access with 18 competitive mini-games.

- Players use their mobile phones as controllers (you can use game pads as well!)

- Everything is completely web-based, no downloads or installs are necessary to play

- All games support up to 8 players at a time and are action based, with quick ~one minute rounds to keep a good pace. This means there are no language based trivia or asynchronous games!

- In the future we plan to open up the platform for 3rd party developers (and Gamejams!) as well. We take care of the network connectivity, controllers etc.. 3rd party devs can focus on developing cool multiplayer mini-games without spending an eternity with networking code and building the infrastructure.

Interested to hear if this resonates with Hacker News readers!

In my free time this year I've been working on a full stack JS framework called Torpor: https://torpor.dev (https://github.com/andrewjk/torpor)

Components are JS functions, containing UI that is (mostly) HTML, with reactivity only via proxied objects.

To test it out I built a distributed social media/microblog site called Redraft: https://redraft.social (https://github.com/andrewjk/redraft)

It's edge native (with a Cloudflare deploy button in that repo) with your posts stored in an SQLite file. You can log in to your site to post and comment on your own posts, and use a web extension to comment on posts from people you follow wherever they are on the web.

There are many bugs and missing features, the documentation is patchy, and it's probably riddled with security holes. Give it a go if you're feeling brave!

I shared this last month, but I’m still having a lot of fun working on it.

I made a daily word puzzle called Tiled Words.

https://tiledwords.com

Currently about 2,000 people play every day and I’ve released 59 puzzles!

One feature I’m excited about is crowdsourcing puzzles. Today’s puzzle is a “community puzzle” made entirely from clues that players submitted! I plan to do this every week or two.

I wrote about launching and the first month of puzzles if you want to learn more!

https://paulmakeswebsites.com/writing/a-month-of-tiled-words...

https://workglow.dev

It is a workflow graph automation site (drag and drop and connect nodes), but is a toy and only allows a local user and local models (both transformers.js and tensor-flow mediapipe), so costs me nothing. Mostly text stuff at the moment, but working on a slate of image stuff this week, may get to audio and video as well, we shall see.

I'm working on "Cargo but for C".

It started out as something marginally more useful than vendoring your dependencies as submodules + baking in the knowledge of how to build a bunch of common projects.

I realized, though, that there was somehow a huge gap in the insane world of C build tools. There's nothing that:

- Lets you pin really precisely and builds everything from source (i.e. no binary repository)

- Does not depend on either a scripting language or a completely insane DSL (Conan uses Python, CMake is an eldritch horror, ditto Make, lots of other tools of course but none of them quite hit the mark)

- Has a good balance of "builds are data" and "builds are code".

Anyway, it's going great. There are, of course, a ton of problems to solve. Chief among them is the obvious caveat that C is not a monoculture like Rust. There will be zero upstream libraries that use this tool natively. But I don't think it matters. I think I can build something which is as much better to the existing tools as, say, UV was to existing Python tools, even with that disadvantage.

I recently released Blobcache v0.0.2. https://github.com/blobcache/blobcache

Blobcache is a content-addressed data store for holding application state, and buiding E2EE applications. This most recent release includes a git remote so you can push and fetch Git data into and out of Blobcache.

I’ve been working on a custom RTOS for Cortex-M for the past 10 years: https://github.com/raphui/rnk It started as a way to learn RTOS internals, and over time it has grown into something with lots of nice features. I’m even using it in a dirtbike anti-theft tracker I am building. Also, 2 months ago, I did a weekend challenge to build an embedded software parameter DSL and compiler. Its goal is to let firmware developers define configuration values, thresholds, constants, and other application-level parameters in a structured, human-readable format, and compile them into binary data that the firmware can directly use. https://github.com/raphui/epc

Happy to get any feedback :)

https://plimsoll-line.app

I learned that ships have a "max load" line (or Plimsoll Line) https://en.wikipedia.org/wiki/Load_line_(watercraft) to prevent overloading them with cargos, but my todo list didn't. So I built an app to surface my emotional load and put mental health above raw productivity.

I am experimenting with the concept of giving each item in the iOS Reminders app an impact multiplier between -1.0 and +1.0 to assign them "weights". The net weight of the todo items should indicate my overall mood or emotional burden. If it doesn't maybe I have yet thought about what's making me feel good or bringing me down. The net weight is visually represented by the "water line" that rises the more into the negative the net weight becomes. I'm thinking of adding features to nudge me into addressing the rising water line.

And since I want to lower my own stress and anxiety using this app, there is no signup or subscription. No data collection other than the bare minimum to make the "tip jar" working through the App Store IAP, so no PII collection.

Do you think you'd find this approach to be helpful for managing your own anxiety level?

(Edited to add a bit more clarification)

Working on migrating Hopp's [1] overlay window, which we use for drawing the remote cursors, from winit + wgpu to gpui. I used claude in the weekend to make a prototype and now I want to make a gpui app, which will replicate all of our requirements, in order to see what is missing and if I need to contribute upstream. I am planning to write a blog post when the migration is over.

[1] https://github.com/gethopp/hopp

I’m working on a video game, purely for fun.

Here is a work in progress build:

https://muffinman-io.itch.io/space-deck-x

It is a combination of a shoot-em-up and deck building. You fly and shoot until you get to the boss, when you get your deck out to fight them.

That genre combination is definitely too ambitious, but I think it is fun to play and I’m enjoying making it.

I have a bunch of ideas how to combine the two parts better. But over the years, I’ve learned to control scope creep and actually ship pet projects.

Right now I’m in a middle of changing how enemy waves are spawned. After that I want to make a short tutorial and add two more bosses as well as more enemies.

If you end up playing it, please share your feedback I’ll be glad to hear it.

The game is made using Kaplay, a game dec library which brings me joy to use. I can best describe it as my friend described Pico-8: “easy things are easy”. But compared to Pico-8, Kaplay doesn’t have virtual console limitations and comes with a big library of components. Try it out, the community is small, but the library itself is really fun and easy to use.

EDIT: For context, this is about two weeks of work, in the evenings when my kid is asleep.

https://www.beatsync.gg/

I launched this on HN over the summer, but it's millisecond-precise audio synchronization for multiple devices, performed purely in the browser! I'm sitting at around 5K daily active users now. Also, it's open-source!

I want to build a complete radio station managed by an AI agent. It’s still at the idea stage right now: https://github.com/baturyilmaz/agent-radio

The idea is simple, but I think it could be really cool: an autonomous agent that actually manages an entire radio station. It creates its own shows, play copyright-free tracks, shares the daily program schedule on social media and the website, and later I want to add guest appearances too and live 7/24.

I just moved to a house with a barely finished basement. White walls, white painted floor, exposed ceiling joists and ductwork painted black. I’m experimenting with cheap projectors and lighting effects (using clamps to attach to the joists as if they were a truss) and furniture on wheels to create a configurable virtual space with full wall projections, sound, and lighting to match (but not overpower) the video. My plan is to make a camera/light platform with a cheap projector, and Raspberry Pi, and directional LED lighting so that I can coordinate all of them over the network. It’s also my office, library, game room and I have some awesome ideas on how to use the space to augment D&D games. But the white concrete floor has got to go - too bright, too cold, too hard, and too loud.

Just launched my gaming portal a few weeks ago, featuring over 200 games I've made over the years:

https://ookigame.com/

All the games were either developed with libGDX or threejs. I have no plan to monetize yet and still work on building traffic and improving SEO. Surprisingly, I got approved for google adsense already, which I submitted just for experimenting.

Working on a TUI tool which demonstrates the behaviour of X86 SIMD instructions. This is all done in Go assembly, and is probably most valuable for Go programmers.

The problem for me was trying to read and understand the implementation of a swiss map implementation. The SIMD instructions were challenging to understand and the documentation felt difficult to read. I thought that if I had an interactive tool where I could set the inputs to a SIMD instruction and then read the outputs, understanding the instructions would be much easier.

This turned out to be true.

Building this tool for all AVX/AVX2 instructions turned out to be a larger task than I had expected. Naively I just went off a Wikipedia page on AXV and assumed it had listed all the instructions (this was a bad assumption).

I am nearly there. Looking forward to completing this project so I can actually use it to do some fun stuff processing text and maybe even get back to that swiss map implementation.

https://github.com/fmstephe/simd_explorer

(This is also my first attempt at a TUI app)

https://joinpromptify.com/

A prompt engineering tool that takes vague prompts and transforms them into context-rich JSON/XML structured prompts. Fully customizable and tracks prompting history safely in tab session, automatically injecting context and learns style.

Makes outputs of any AI so much better due to restructuring and breaking down requests into instructions AI can easily execute upon and mitigating risk of hallucinations. Perfect for complex tasks like coding and content creation.

Exists as a free chrome extension right now. Would love if you tried it and have any feedback!

Email me at krishnamalhotra150@gmail.com

https://meetlace.ai - LACE, a self-organising research companion for long-horizon inquiry.

With LLMs, generating ideas and snippets is cheap; what’s hard is keeping track of fragments with their “why I cared” context over months. Most tools (Notion/Obsidian/etc.) assume you will do the work (folder/tag/linking) structure will maintain it forever. I don’t.

In LACE we: – capture fragments from the web via a browser extension – auto-cluster them into evolving “threads” / projects with summaries & reading lists – maintain a graph of connections across threads (“topology of attention”) – let you turn a cluster of fragments into an essay draft when you’re ready to share.

Stack is a fairly standard web app + LLM pipeline. Used neo4j's llm-graph-builder as a starting point.

The interesting bit is self-organising graph. treating fragments/questions/lines of inquiry as first-class objects and letting the system reorganise around them over time instead of fixed folders.

It’s in a small test phase right now. If you’re a researcher/writer/engineer/founder who constantly loses good ideas in your notes and want to try something opinionated in this space, I’d love feedback.

background write-up: https://open.substack.com/pub/ozthinks/p/from-fragments-to-i...

I'm working on Mutacortechs, an ALife simulation where "organisms" each have their own emulated 16-bit processor with 64K RAM. Like Core Wars for the 21st century. It's a small project compared to what some others here are working on, but it's an order of magnitude larger than anything this embedded EE has ever written. I have the ISA designed, assembler complete, emulator stage 1 complete (160/204 instructions implemented), and the start of the simulation working. Last night I wrote a program in custom assembly for an "organism" that looked around, found food, moved toward it, and ate it. I'm pretty excited by the milestone!

A security-focused "check engine light" for your shell prompt: https://github.com/erichs/dashlights

There's a gap in most security tooling: it's not IN the terminal with you. It doesn't have enough context: your environment, your repo state, your current directory, etc. to catch the small hygiene mistakes that accumulate over the many tiny decisions you make every day to ship code and learn new tools. Those "cut corners" add up, and can lead to costly blunders.

Dashlights attempts to bring awareness and visibility to your immediate shell context.

https://dealgorithmed.com/

Working on a new newsletter to encourage people get off social media by helping them discover all sorts of random interesting sites that exist out on the open web.

Bedtime Bulb v2 [0], a light bulb that emits less blue light than other lighting, is finally shipping. It took years to get it right, but we figured out how to make a relatively energy efficient bulb that emits infrared and dims smoothly with any dimmer.

My team is also about to ship Atmos [1], a lamp for the bedside that automatically shifts from higher-blue light during the daytime to low blue light at night.

[0] https://restfullighting.com/bbv2

[1] https://restfullighting.com/atmos

I am working on a self-hostable borrow store management system: https://github.com/leihbase/leihbase.

I am running it in my city for a library of things. We hope to help people abstain from buying things they only need once a year.

It includes a reservation system, and an dashboard to manage those reservations in the shop. Currently I'm expanding it with a proper product management interface.

https://securitybot.dev/

SecurityBot.dev is an all-in-one uptime, performance, security, and SEO monitoring tool. I launched it a few months ago and have been iterating on it ever since. Later this week SecurityBot.dev will log its 1 millionth uptime check which is pretty cool to see.

It includes the usual uptime monitoring service that you see everywhere else, but also features such as a PageSpeed Insights monitor (https://securitybot.dev/pagespeed-insights) and a broken link checker (https://securitybot.dev/broken-link-checker). I continue adding new monitor types as I personally need them (and also based on use feedback).

I built a free USCIS form-filling tool (no Adobe required)

USCIS forms still use XFA PDFs, which don’t let you edit in most browsers. Even with Adobe, fields break, and getting the signature is hard.

So I converted the PDF form into modern, browser-friendly web forms - and kept every field 1:1 with the original. You fill the form, submit it, and get the official USCIS PDF filled.

https://fillvisa.com/demo/

What Fillvisa does:

- Fill USCIS forms directly in your browser - no Adobe needed

- 100% free

- No login/account required

- Autosave as you type

- Local-only storage (your data never leaves the browser)

- Clean, mobile-friendly UI

- Generates the official USCIS PDF, ready to submit

- Built-in signature pad

I just wanted a fast, modern, free way to complete the actual USCIS form itself without the PDF headaches. This is a beta version

I started a challenge I call “Dopamine Detox December” in which I stopped doing certain things to stop dopamine stimulants: - No social Media - No news - No video streaming services (such as YT, Netflix, and Amazon Prime) - No electronic and energetic music

The first days were so hard but now I’m getting used to it. I documented it here: https://ramezanpour.net/post/2025/12/11/dopamine-detox-is-ha...

I’m building something that keeps finding gaps I didn’t realize were gaps.

It’s called Riftur, a gap analysis tool that compares two documents and highlights gaps, missing requirements, and inconsistencies. The interesting part for us has been getting the system to understand intent instead of just keywords, so it can flag partial matches and subtle gaps rather than just “present / not present.”

Still early, but it’s been useful in ways we didn’t fully expect. If anyone’s curious, you can demo it out here: https://riftur.com I'm happy to hear thoughts or learn how others handle this kind of review work.

https://github.com/manuelkiessling/Camera2URL

https://apps.apple.com/de/app/camera2url/id6756015636

Camera2URL is, as far as I know, the only iOS and macOS application that let‘s you send the picture taken with the camera directly to any HTTP endpoint the moment you press the trigger.

For example, this makes it possible to trigger an n8n workflow the instant you take a photo:

https://www.youtube.com/watch?v=Y5nCw8NY8zk

https://www.dataversion.app/

Lineage-aware. Versioned. Trustworthy Data - for Engineers and AI.

Your engineers waste up to 40% of their time monitoring, investigating and fixing data. Even then you don’t trust the accuracy, source, or freshness of metrics on your dashboard. You wish AI can answer your data questions but it cannot show you proof, or where it came from. AI helps software engineers to move fast and break things, because they can always rollback, with git. But you cannot do that for data. Bad data entering the system, spreads across the company before spotting, and takes weeks to clean up.

DV changes this, giving you lineage-aware, versioned data. It records data-lineage when data is captured, transformed, and committed, at commit/snapshot level. So when things break, DV knows what other data is impacted downstream, and it can rollback the whole chain to the previous state, instantly - no data copy/restore needed. It can also backfill the data across the chain automatically.

With DV, both your team and your AI agents can finally see: - where data came from - how it was transformed - how to revert safely with a single click

Your engineers can move fast on data, without breaking trust. Your analysts can build pipelines by simply describing business questions to AI.

DV is Git for data, so you can focus on your business, putting analytics on auto pilot.

-- Please contact me if you are interested in preview program.

This holiday, I built a cool Christmas project. It's a real-time experiment.

https://bigchristmastree.com

I’m self-teaching modern C++ by developing a native music library manager and player for Windows, macOS and other Unix systems. The main focus is on the 100% custom UI (with Direct2D/CoreGraphics/Cairo backends), aiming for responsiveness, power-user friendliness and compactness. The UI thread is absolutely sacred and I’m trying really hard to separate the core logic from the UI, because I hate how laggy and hang-prone all players I’ve tried are. I’m drawing inspiration from pre-2010 skeuomorphic and dense UIs. Key features include fast incremental imports and powerful UI elements with features like multiple column sorting, multiple element selection and keyboard-first navigation. I understand this problem is already solved, but I’m starting to DJ and curate my personal music library again. So far, nothing has been more satisfying than an old unsupported version of iTunes that doesn’t even support FLAC. I’ve tried foobar2000 but it doesn’t meet many of my requirements. Therefore, I’m building this software both because I have a need and because writing it is very fun (and frustrating at times)!

I’ve written a PoC already (mind the crappy and incomplete UI), mostly to test the wild custom UI idea, and it’s working so far! https://i.redd.it/ocx9m5av6d6g1.jpeg

I'm working on a postcard maker for museum collection artworks in the creative commons. It's in a phase where I'm looking to get feedback from people who might like to use it. Right now it only sends mail in the US. I've integrated the Met, Cleveland Museum of Art and AIC, with an experimental feature for Wikimedia Commons.

You can find the CC0 postcard app here: https://sweetpost.art/ but if you want to go the extra step you can install the Chrome extension and see what comes up: https://chromewebstore.google.com/detail/new-tab-new-art/old...

edit to add Firefox addon: https://addons.mozilla.org/en-US/firefox/addon/new-tab-new-a...

If you want to send a postcard you can use the promo: 1BUCK to send a postcard for a dollar to whoever in US. Any feedback or questions are welcome.

Want to put local history on a map, so when I go somewhere I could ideally just open this webapp and immediately get presented with cool or interesting history that happened close by.

Currently spending time establishing relationships with historical societies, as I really need them to contribute points of interest, and stories. Many of these societies are run on a voluntary basis by 70+ year olds, so it's a long process. Getting some good responses eventually though, so it might actually go somewhere, just a lot slower than I want.

Also still doing https://wheretodrink.beer, but haven't added anything of note since playing on this other project.

And react2shell was a blast

https://mealsyoulove.com

Basically personalized meal planning and grocery integration. Since the Show HN I posted a couple months back I've been incorporating user feedback to add things like meal prepping, better ingredient reuse across meals, and cooking style preferences.

One of the biggest points of feedback has been adding more grocery stores but I'm really limited by who has APIs to actually integrate with, which is basically just Kroger and Instacart. Walmart has an API but ignored my API access request. Would love to hear if anyone has ideas on how to approach this.

Some months ago, I saw a tweet from @awilkinson: “I just found out how much we pay for DocuSign and my jaw dropped. What's the best alternative?” Me being naive, I thought “how hard could would it actually be to build a free e-sign tool?”

Turns out not that hard.

In about a weekend, I built a UETA and ESIGN compliant tool. And it was free. And it cost me less than $50. Unlimited free e-sign. https://useinkless.com/

https://slidebits.com/isogen

An AI coding tool desktop application written in Rust and Javascript. Cursor, Windsurf and etc uses too much memory on my machine. As an engineer it is important that the tools I use daily are performant and fast and I could use while watching a youtube video or browse hackernews.

While working on the tool I am building some boilerplates to start from, starting with mobile games targeting arcade games like Flappy Bird.

Making a first aid kit for stingray stings! If there are lifeguards nearby they’ll usually treat you, but we think it would be nice to have a “go bag” in the back of your car for scenarios where there aren’t lifeguards (remote beaches, or after sunset, etc). The standard of care is to clean the wound and submerge it in water around 110-120F for 1-2 hours. We’ve been researching the best, safest method to get that heat, and working on putting a package together. Here’s our first attempt:

https://mydragonskin.com/products/stingray-treatment-kit

Working on NetBox Designs: https://netboxlabs.com/blog/netbox-designs-introducing-decla...

Infrastructure architects think in terms of building blocks in "high-level designs" and those building blocks are often socialised/expressed in Visio/Spreadsheets. Thinking in building blocks is now more necessary than ever because of the sheer size of the infra being designed/deployed.

This approach is problematic after the design phase because there's a lossy translation to where the low-level design lives, often referred to as the Source of Truth, like NetBox.

NetBox Designs allows users to express composable, versioned, and templatizable building blocks that can be rendered to low level designs. No lossy translations, and you can always check in the future "does my LLD still match my HLD and if not, where?"

I'm writing a toy eigenvalue solver in Rust using the QR algorithm. I didn't intend to, but I recently discovered the Gershgorin Circle Theorem and thought it'd be neat to create an interactive visualisation for my [blog](https://abstractnonsense.xyz).

I don't like JavaScript, and I've been meaning to learn Rust for a while, so I'm compiling the Rust algorithm to WebAssembly to run in the browser natively! It's been a fun trip back into the arcane world of numerical algorithms and linear algebra!

A Jellyfin client written in Rust, specifically for music. Most existing clients are electron or web based and I wanted something native.

https://github.com/Fingel/gelly

Available on Flathub: https://flathub.org/en/apps/io.m51.Gelly

I'm working on an affordable SaaS platform for small and mid-sized fabrication shops across the US and Canada. It automates quoting and production for sheet-metal and CNC jobs and can handle pretty much any CAD format, even full assemblies. On the AI side, we've got a mix of models doing the heavy lifting: a tuned geometric transformer for feature detection, a graph neural net for topology, and a vision model for mesh segmentation. All that ties into our custom CAD logic for geometry parsing, 2D nesting for laser/machining, and 3D nesting for forming and packaging. The whole idea is to level the playing field so smaller local shops can compete with the big instant-quote guys without needing an in-house dev team.

I've been slowly building a website full of daily puzzle games (https://regularly.co/). I built the first game for my wife (https://regularly.co/countable) which she plays every day. Floored is my personal favourite, I find it deceptively challenging

I'm currently making a number of "breadboard-able" analog computing modules.

I've always loved electronics since I was a kid (still trying to learn). As I explore and learn I've begun to make these small "breadboard helpers" [1]. (Just one on Resistor Transistor Logic (RTL) right now.)

An obsession over a project in a 1970's hobbyist electronics magazine sent me down the rabbit hole that is (was) analog computing. So I have been bread-boarding and prototyping small analog computer modules.

I'm in the PCB-layout stage for the modules and hope to have them ready early next year.

[1] https://www.circuitpixies.com

I’m building PaperDrop it's a research workspace that turns PDFs and new arXiv papers into something you can actually work with (notes, questions, cross paper comparisons). Would love feedback from people who read a lot of papers: https://paperdrop.xyz

It's still early prototype / beta, but wanted to share it anyway!

https://usecrucible.ai

We want to speed up adoption of custom AI, but most people suck at building it (no expertise, money, time, etc.).

We thought, what if you could "Vibe ML" your way to it? Allow any AI engineer or PM to build custom AI directly from their current implementation.

So we built these agents that orchestrate the entire life-cycle of custom AI. We start by hooking into how you use AI, prepare/label your data, detect the best recipes for your task, fine-tune, and deploy it for you. Really tried to simplify the entire process.

We aren't entirely sure about the UX/UI patterns. We aren't going chat first because if most people don't know where to start with ML, how in the world are they going to prompt it!?! Instead, we auto detect the AI tasks you've built and go from there.

I'm working on EACL: http://github.com/theronic/eacl

EACL (Enterprise Access ControL) is a situated ReBAC authorization library based on SpiceDB, built in Clojure and backed by Datomic. EACL queries offer sub-millisecond query times and has replaced SpiceDB at work (CloudAfrica).

'Situated' here means that your permissions live _next_ to your data in Datomic, which avoids a network hop and avoids syncing to an external AuthZ system like SpiceDB, so all queries are fully consistent.

EACL is fast for typical workloads and is benchmarked against 800k permissioned entities. Once you need more scale or consistency semantics, you can sync your relationships from Datomic to SpiceDB 1-for-1 in near real-time because there is no impedance mismatch between EACL & SpiceDB.

Read the rationale for EACL here: https://eacl.dev/#why-was-eacl-built-the-problem-with-extern...

IMO, if you need fine-grained permissions, EACL is currently best-in-class for the Clojure ecosystem. EACL is especially suited to Electric Clojure applications and can be used to populate menus in real-time.

EACL would not have been possible to build solo in my spare time without modern AI models to rapidly implement specifications and test against human-written tests.

Here is a ~7-minute screen recording of EACL used from an Electric Clojure application for real-time ReBAC queries: https://x.com/PetrusTheron/status/1996344248925294773

https://snowdayacademy.com

Reading practice and assessments for k-12 students, with reporting and tracking for parents, tutors, and teachers. It uses speech to text and quizzes to assess the students reading ability. It picks up skipped words, substituted words, along with metrics on speed and pauses.

I have been testing it with my 2 daughters and its finally at a spot where I don't have to drag them to test it against their will and they are showing improvement. I am working on the marketing now. I have gotten some interest from private tutors but I have a feeling it will be great for the homeschooling community.

Thanks for any feedback! Please leave first reactions as the marketing page is what I am iterating on right now. Don't hold back!

I’m building a planner that automatically plans employee shift schedules based on their availabilities and roles.

There’s many different solutions out there but I’m carving out a niche where we deal with complex shift assignment problems.

For example one of our customers has specific union rules that need to be followed when assigning work and we ensure that they are compliant.

Our backend relies on an MIP solver as well as heuristic search to refine plans.

Working on a Graph-RAG integration with Claude Code. My work has many interconnections (components used at multiple clients for example) so learning the graph db way of thinking has been very interesting. I have created my own memory mechanism and use the database to feed a personality into the experience. Tons of fun.

S&P 500 correlation matrix (created with Svelte).

Currently trying to better contextualize the visible subregion of the matrix in relation to the full dataset (beyond what the current minimap does).

https://cybernetic.dev/matrix

Building pyreqwest, a high-performance Python HTTP client backed by Rust’s reqwest. It has gotten quite feature rich: async and sync APIs, similar ergonomic interface of reqwest, full type hints, and built-in testing/mocking. It has no unsafe code, and no Python-side dependencies. (Started after getting too annoyed with all the issues httpx has.)

https://github.com/MarkusSintonen/pyreqwest

I’m working on DeepCost.ai, an AI-driven cloud cost optimization tool for AWS, GCP, and Azure.

The goal is to help small teams and fast-growing startups understand where cloud spend is leaking and automatically reduce waste (idle resources, over-provisioned workloads, inefficient Kubernetes setups, and AI API usage). Setup is lightweight, and we focus on actionable recommendations rather than massive dashboards.

We’re still early and testing with a few teams who want better cost visibility without running a full FinOps practice.

Website: https://deepcost.ai

I’m kicking off my 2026 book club! It’s probably a bit different from book clubs you’re familiar with.

Each of us is reading sixty books over 2026, five a month, where every book is self selected by each member.

It’s small, six people, all brought in by application only.

You can check out our shared bookshelf here! (Heavy inspiration from Stripe Press)

https://bookshelf-bookclub.vercel.app/book/cmj4pfpom001gqsbj...

(swipe left/right on mobile, up/down arrows on pc :))

https://ardent.pet/

I doubt it'll be of interest to folks here - but my Family recently (in the last couple of years) started to breed ragdoll cats in the U.K.

This has been my personal project to understand where I personally find LLMs useful as coding assistants, and where I don't. One easy to spot example is, front-end + copy. Another area I've enjoyed it is talking through how I'd design and build functionality and features ahead of time.

It's been very interesting, and is helpful to folks I care about, even if no-one else ends up using it!

I'm working on a Unicode visualization tool [note 1]. It's meant to visualize transformations and relationships between characters, as well as connect everything directly to the exact lines in the Unicode Character Database (UCD), which defines these relationships. The UCD is a series of text files, it also has an XML version.

I love online Unicode tools, serious ones and silly ones, and I use them often for fun or for development. What I see online is that few technical people have a good understanding of Unicode, or have big misconceptions about how it works. I'd like to change that, through visualizations and direct links to the data sources (the aforementioned UCD) and links to the Unicode documentation (which is well-written but can be difficult to navigate or even find).

I've worked a lot on it, but I'm totally stuck again. I get too zoomed in and it's hard to see the big picture, plus it's difficult to know how much effort I can realistically put in because I don't know how big the market is. It's a niche tool, but how niche? Would anyone pay for it? But I'm not sure how to do market research, especially for a niche like this. Any advice would be appreciated!

1. The initial idea was based on this post I made in 2024: https://news.ycombinator.com/item?id=42014045

I'm writing https://github.com/controversy187/kerbalbook, which aims to be a hobbyist's guide to orbital mechanics, spaceflight, and maybe astrophysics. All this through the lens of a Kerbal Space Program walkthrough.

https://opaledx.com / https://github.com/rbbydotdev/opal

open source browser first server-less markdown document workspace and publisher, contending to be a free obsidian alternative

storage is done in indexeddb or it can utilize opfs to work on a local file directory

comes with git integration

can publish to aws cloudflare vercel and github pages

built with shadcn react and typescript

Writing articles about how to test frontend apps (mostly react based apps) at https://howtotestfrontend.com/ Adding some final bits to some new vitest browser mode content this week hopefully.

https://meetinghouse.cc

A place to find and be found for twitter users only right now. As a silly project I am trying to make not a social network, but an extension of another social network. So far its going OK. It also functions as a link-tree like site with profiles: https://meetinghouse.cc/x/simonsarris

Eventually I might open it up more widely, or make a different globe per social media network.

https://pistepal.app/ - a ski map app - built at breakneck speed over the last few months. I believe this is the only ski map app that offers turn-by-turn navigation!

Screenshots in the App Stores, e.g. https://apps.apple.com/us/app/pistepal/id6754510927

Still a little bit rough around the edges but hopefully will be / is in decent enough shape for the start of the ski season (just about happening now..)

Currently figuring out the right balance of free tier & daily trial. Priced at $10/month and therefore significantly undercutting the competition, hopefully this is enough to gain entry into the market. (May need a more generous daily trial though, admittedly 10 minutes is not really enough to actually try it out on the mountain).

Seems ad spend is necessary to get any kind of traction...

Feedback welcome!

I have just released a map of median rents in Berlin [0]. Now I'm improving it. I want people to enter their search criteria, and get an idea of how rare and expensive their desired apartment would be.

This will help people set clear expectations for their apartment search.

[0]: https://allaboutberlin.com/tools/rent-map

Simplification of my digital self. Removed most of my online accounts. Removed all my VPS's. Removed most apps from my phone except core ones. Cancelled a lot of online subscriptions.

In the real world finally moved everything to USB-C. Gave all my old cables away. I have two chargers in my home and a handful of C to C cables. Everything connects to everything now.

Home is now downgraded to a dumb home. Lights work on physical toggles. No hubs or sensors anywhere. Heat and AC is with a dumb panel on the wall.

It feels freeing.

Open source Nerf blaster simulator, for both spring and pneumatic blasters.

https://github.com/btrettel/blastersim

The core simulator part works, but I don't yet have a user interface or documentation. Probably just going to be text input files to start, maybe a GUI later. Recently, I'm mostly working on testing.

The simulator is object-oriented and basically allows one to build up a blaster from separate control volumes and connections between control volumes. This is useful as it allows the same core simulator framework to handle different blaster configurations and even variants of them. For example, someone asked me to make the spring piston able to pull a vacuum on its back side due to not having sufficient flow. That's easy here as I just need to add another control volume and the appropriate connection onto the basic springer configuration.

I'm trying to build a native postman alternative using Rust + Iced. I want it to use .http files as its collections and .env files as its environments. So that data is stored in plain text and easily editable by AI and usable by other apps like VSCode rest client.

https://github.com/sharno/zagel

https://provenancevault.com/

I started this over the summer when I was moving to a new house and wanted to document the family history behind some thing I own. It's turned out to be more useful than I thought and I've expanded the features as friends found it useful. A developer friend, who I used to work with, joined me and we're both working on it now. It does have a little revenue now but we are far from quitting our day jobs.

I'd really like any feedback from the HN community!

https://colocataires.dev/

Trying to build a small-scale ISP/hosting provider domiciled in Canada. We really want to be able to rent real rack space to enthusiasts who would like to benefit from having stuff in the datacenter but don't want to take on the opportunity cost to get started. It came out of my own desire to have a machine in a DC rack.

This week we've been writing a bunch of "reviews" of self-hostable software since a lot of our friends are curious about this space but don't have a good understanding of how to get started. https://blog.colocataires.dev.

I'm currently working on something that lets you describe a hardware product in plain English and get actual manufacturable files out — PCB, enclosure, firmware, the lot.

Very early days still. Whilst I created a fork of toon for Kicad (called TOKN (https://www.mikeayles.com/#tokn)), with the intention of using a reduced token format to generate schematics using LLM's, I could get the models to follow the syntax correctly, but they didn't have the knowledge. So I was then going to create a whole RAG system, but got distracted by this current project.

There are people out there doing AI schematic generation, like flux.ai (which is incredible (and incredibly well funded)), but 90% of products, especially at proof of concept stage, are basically a microcontroller, some power, probably usb, and some IO, bluetooth/wifi if you're lucky. So we can use a library of pre-validated subcircuits and slots them together on a grid. Routing's deterministic, so if it compiles, it works. (sorry, deeppcb & Quilter!)

The enclosure side is more fun: once the PCB's done you've got real dimensions to work with (board size, mounting holes, where the connectors poke out), so I use an image model to generate some concept art, then feed that to an openscad generating model as visual inspiration alongside the hard constraints.

Basically trying to get a full hardware product pipeline done automatically.

Building a simple service that allows one to post live activities to mobile devices (iOS to begin with).

It started as something I wanted to build for myself. I have a Bosch dishwasher that lacks any glanceable indication of how far along it is. Bosch provides an app, but checking the progress takes too long to be useful.

I figured live activities was a good fit, and then realized that I am not alone in wanting something like this. So, I am trying to make it into something usable for all the home automation tinkerers.

https://getaivi.app

I'm building an app that takes a screenshot every hour from some news websites. It's is a small python script running on my raspberry pi 5 and for now I'm saving the images there. I'm planning to build a front-end app to explorer how each website changes over the course of a day, focusing only on the top of the landing page.

I've continued to work on an open-source containerized agent framework called Capsule Agents. Lots of progress this month and I have my first one live in my homelab! I'm training for a marathon and its able to send a discord message every morning with the workout on my schedule and the "why" behind it.

Here's the elevator pitch for the framework:

Its built around 3 key ideas I've dealt with inside the agent ecosystem 1. Agents become far more capable when they have access to a CLI and can create or reuse scripts, instead of relying solely on MCP.

2. Multi-agent setups are often overvalued as “expert personas” but they’re incredibly effective for managing context, A2A is the future.

3. Agents are useful for more than just writing code. They should be easy for non-engineers to create and capable of providing value in many domains beyond software development.

If that sounds interesting take a look! https://github.com/brycewcole/capsule-agents

Working on making Rust accessible to all with engaging content

https://aibodh.com/posts/bevy-rust-game-development-chapter-...

https://aibodh.com/posts/bevy-rust-game-development-chapter-...

https://aibodh.com/posts/bevy-rust-game-development-chapter-...

working on bringing some basic, banal bits of infrastructure management to real-world traffic issues.

I'm literally trying to fix broken junctions around me.

It's at the same time laughably easy, and wildly complicated.

I'm calling the alternative, correct junction a 'traffic bean':

https://josh.works/traffic-bean

It's relevant to software, sorta. I've got rather a lot of GIS/mobility-related data available here. It's just a rails app that renders a bunch of my strava activity data all at once: https://josh.works/mobility-data

The fixes are entirely accomplishable with nothing more high-tech than traffic cones. They can be upgraded to more permanent and pretty physical objects, but the key bit of the traffic bean finds traffic cones fully sufficient. No half-million USD traffic signals, no red/green/yellow light cycles. continuous flow. safety. peace.

Some stuff that's obvious in some domains, like "at high-throughput times, don't allow key bits of infrastructure be completely unusable".

Bringing this to american municipalities is like trying to speak a language with someone that doesn't speak your language, but demands that you treat them as if they do.

it's been a big, long-running project. Most tradition in the USA is really a fig leaf for supremacy, and people can smell that I'm coming for their supremacy a mile away, and they immediately begin deploying emotional defenses.

Or so it seems.

Open sourcing a system where you might have notes in markdown to build a knowledge base, and review them according to a schedule, but also Anki like flash cards attached to each note.

All notes are simple markdown file stored locally.

I’ve been using it to benefit my research and make the knowledge to stick better on my head for several years. My base is more than 400 markdown notes now, and I sync them to a private GitHub repository.

https://github.com/odosui/mt

1. Vibe coding a microcontroller firmware project. I'm using "vibe coding" in jest here because I'm actually an experienced coder, but this was a chance to try using the AI coding assistants for a clean sheet project at minimal risk. I'm going on 63, and could easily finish my career without AI, but where's the fun in that?

One amusing thing I've noticed is that every time the AI generates code with a hard coded hexadecimal constant, it's a hallucination. My son suggested feeding all of the chip datasheets into the AI and see if the constants improve.

2. Finally converting my home semi-hobby electronics business (something like a guitar effects pedal) to machine assembled circuit boards.

Just launched a restricted browser for kids for iOS: https://weblock.online Now testing on my kids. The idea is that the browser is whitelist-only, so kids can open only approved websites. I receive a notification when they want to visit an unknown website and I can allow or deny it. Works great for my family, hope it will be useful for someone else.

I am still plugging away at https://threeemojis.com/en-US/play/hex/en-US/today , a daily word game for language learners.

Since hacker news last saw it, it’s been translated into English, German, Spanish and Chinese. If, say, a Chinese speaker wanted to learn more English words, then they could go to https://threeemojis.com/zh-CN/play/hex/en-US/today and play the game with English words with Chinese definitions and interface. This is the first cross language daily word game of its kind (as far as I know), so it’s been a lot of fun watching who plays which languages from where.

The next challenge that I’m thinking about is growing the game. The write ups and mentions on blogs add up, the social sharing helps, but I’d really like to break into the short form video realm.

If you read interviews from other word game creators, every successful game has some variation of got popular riding the wordle wave, or one random guy made a random TikTok one time that went super viral, and otherwise every other growth method they have tried since then hasn’t worked that well and they are coasting along.

So, sans another wordle wave, I am working on growing a TikTok following and then working on converting that following into players, a bit of a two step there, but that’s how the game is played these days. https://www.tiktok.com/@three_emojis_hq for the curious. Still experimenting and finding video styles and formats that travel well there. Pingo AI and other language apps have shown how strong TikTok can be for growth, so I think there’s something there. That’s all for this month!

For the past week, I’m working on creating device with a screen to show my indian parents if i’m in a meeting or not. So they don’t trouble me and come in my room unannounced when im in a meeting.

It’s build using ESP32 and a small screen which shows On and Off and the time till meeting is over. I learnt Fusion 360 and designed a small snap fit case and got it 3d printed.

I have a small electron app running in my mac os system tray which connect to esp using BLE and it also checks if Mac Camera is in use (using Apple logs) and then communicate it with the device.

Calling it Door Frame. Had quite fun making it as i learnt 3d design, c++ code using Platform IO and other fun stuff. Even designed a small binary protocol to exchange data over BLE

Making a totally unnecessary and overly elaborate magic item system for my game https://www.chesscraft.ca based on Diablo 2 items. Is it the most reasonable next thing to do to expand the business and monthly revenue? Hah, no.

But unlike my day job, this is my project and I get to do what I want. This is my code therapy.

My "test prompt" for AIs used to be to create an extension to manage tabs. After a year and with MV3 the extension I used to kill duplicated tabs died.

Now this one became my favorite extension.

https://github.com/jeanlucaslima/ato

Warning: current version is maintained only through claude code, even the README. Feel free to criticize/send suggestions.

I’m finishing up Haskell Brain Teasers (https://pragprog.com/titles/haskellbt/haskell-brain-teasers/)

It’s much shorter than my first book, Effective Haskell, and leans more advanced, especially toward the end. Although the format is puzzle focused I’m trying to avoid simple gotcha questions and instead use each puzzle as a launchpad for discussing how to reason about programs, design tradeoffs, and nuances around maintainability.

I am working on a text-editor that allows you to discuss specified file folders with AI agents for knowledge work. It is similar to vs code with chat but for non-technical users and not for code.

I feel like I am constantly fighting LLM interfaces to make available and organized the context needed for discussion. There just seems to be way to much copy pasta into and out of the infinite scroll interface. I also find the output tough to quickly edit and discuss with the chatbot.

It is simple enough but I couldn't find anything like it and it has quickly become one of my favorite tools. I am build over buy to a a fault, so if there is something out there like this already I would not be surprised.

https://github.com/chillenberger/text-editor-dt

https://citellm.com

Working on CiteLLM, an API that extracts structured data from PDFs and returns citations for each field (page + coordinates + source snippet + confidence).

Instead of blindly trusting the LLM, you can verify every value by linking it back to its exact location in the original PDF.

I've been working (very slowly) on a cross-platform UI library written in C. It uses as much as it can from the OS without outright using the native widgets for everything. Rather the focus is on letting the user of the library customize the look of the controls as they see fit.

It's unfortunate but native UI (as in, using the native controls with their native look) has mostly died off in my opinion, at least for complex cross-platform applications.

You can try to do it in a cross-platform manner but it never works well. Want to implement a tab bar like VSCode's? Win32 tab bars do not support close buttons (need to be custom rendered) and Cocoa tabs it doesn't even make sense for them to have a close button. In Cocoa you're supposed to use either the windowing system to do tabs (similar to Safari tabs) or custom render everything (like iWork).

So I say screw it, make it look as you wish.

The design of the API is somewhat DOM inspired (everything is built up of divs that can be styled). It's pure retained mode for now, I still need to think how I'll make reactivity work.

On macOS it uses a custom NSView to implement "divs". Drawing is done with CoreAnimation layers. Text editing is handled by a nested a NSTextView control with a transparent background. Could also host a web view in a similar manner. Context menus are native.

On Windows it uses a custom C++ class that stores Windows.UI.Composition surfaces for drawing (could also use DirectComposition + Direct2D). Text editing is handled by a windowless RichEdit control (ITextHost/ITextServices). Context menus are native Win32.

On Linux it uses a custom QWidget with a nested QTextEdit control for text editing. I'm thinking of experimenting with Qt Quick for hardware accelerated rendering like the other two.

Analyzing frontier LLM performance on my favorite daily puzzle game (https://www.nicksypteras.com/blog/cbs-benchmark.html) Next step is to assess how well the LLMs can create their own new, logically satisfiable puzzles in the same style. Then I'll have them battle it out, with one model creating a puzzle and the other attempting to solve it!

Working on improving the data pipeline for https://iplocate.io - an IP intelligence service I've worked on since 2017. A couple of recent focuses:

1. VPN and proxy detection. We already track dozens of providers, but we can do better here. There's also a bunch of metadata we collect as part of this process which we don't currently surface, so I'm looking at what else we can bring to our databases and free API.

2. Better detail and evidence on how we build and test our own geolocation database, which we create from scratch. There's been a recent trend of misinformation about geo accuracy, including from some other providers, so I want to better explain the accuracy (and inaccuracy) of various techniques, our policy for when we prefer certain data, and so on.

(Open to partnerships for any folks looking for a new provider!)

I'm building a utility to help DJs find "play-out" versions of tracks they already like[1]. You can play with it here[2]. Streaming services are optimized for Radio Edits. But to actually mix a track, I usually need the Extended Mix, Club Edit, or a specific Remix. Manually searching for the "DJ version" of every single track in a 50-song playlist is tedious administrative work that kills the joy of digging.

Remixify automates the search while leaving the selection to you. You paste a Spotify playlist URL, and it helps you or provides you a good starting point for digging. It groups the results by the original track so you can quickly preview and save the versions you want to a new playlist.

We don't try to recommend new music or use AI to guess your taste. It just finds the usable versions of the music you already selected.

[1]https://github.com/kwakubiney/remixify

[2]https://remixify.xyz/

My blog. I created it a couple years ago but didn't really know what to do with it. Have started to use it as a way to learn and have enjoyed writing more than I thought I would. Nothing crazy with UI and I am not talking about anything groundbreaking, but it's been fun!

Shameless plug: https://jeremymaslanko.com/

Working on a low cost email service. Ditched Gmail for my custom domains to avoid lock-in risks, and I believe devs really need stupid-cheap ($10/yr 5GB, unlimited mailboxes/domains/aliases/SMTP/IMAP/webmail) high-quality hosting that nails deliverability with zero spam tolerance. Bootstrapped this instead of pricier options like FastMail. Thoughts?

https://www.lowcostmail.com

Petra (Obsidian CLI) and Petra-Bridge (Obsidian API for the CLI tool integration). https://github.com/H4ZM47/petra-obsidian-cli ; https://github.com/H4ZM47/petra-bridge

This was a "scratching my own itch" project that I cooked up because I was tired of Claude et al cluttering up all of my stuff with random markdown files. Just a simple Obsidian plugin to serve an API that the CLI tool can use to interact with the Obsidian vault. I use a Claude Skill to get the model to create all of those random markdown files in my Obsidian vault, and read from them when it needs context for something. It's working really well for me so far!

A typed execution graph for Go. You write functions with typed inputs and outputs—Docket infers the dependency graph, runs independent steps in parallel, and caches what you tell it to. It integrates with River and a number of data stores.

I spent a year attempting to adopt Temporal at scale, and 6 months trying to wrangle some multistep data enrichment and ML pipelines. This is what I wish I'd had with what I learned

https://github.com/sugarsoup/docket

I'm looking to leverage the upcoming WebNN browser spec with my spreadsheet app. I think integration with vision, audio and language models opens a whole new world of possibilities as traditional spreadsheet apps lean more towards mainly numerical data.

https://harryk.dev/apps/eincalc

https://fishbaitgame.com/

A 2-4 player casual card game that's similar to Exploding Kittens. It'll be free-to-play on mobile and I've been focusing more on marketing these days (mostly running ads, creating short form content, and reaching out to influencers).

I'm using Unity for the front-end, and Node.js (just because I'm already familiar with it in terms of dev + liveops) for the gameservers.

https://www.sixthcoast.com/

It's feed aggregator backed by a web crawler that tries to find interesting RSS feeds. Posts are sorted by inverse frequency with the hope that time between posts will serve as a good proxy for quality.

I've been having fun with it! The results are a little strange, sometimes, but I've found some interesting sites that I never would have found otherwise.

https://github.com/cdlewis/snowboardkids2-decomp

A matching decompilation of snowboard kids 2 for the n64. Why this game? Well it's awesome but also I wanted to work on a decomp project from scratch. I've written several blog posts about my experience for those interested. I hope to do more in the future, probably with less of an AI focus.

* Using Coding Agents to Decompile Nintendo 64 Games https://blog.chrislewis.au/using-coding-agents-to-decompile-...

* The Unexpected Effectiveness of One-Shot Decompilation with Claude https://blog.chrislewis.au/the-unexpected-effectiveness-of-o...

I've been building Hypertrophy, an iOS-native workout app. I've always wanted a simpler, cleaner experience than Strong (on which I've done over 1000 workouts) so I built my own.

I've tried to make it look and feel at home in iOS and I like to think of it as a Notes app for the gym—it does very few things and does them well.

It's completely free with no ads because I'm not a fan of how other workout apps charge you for a basic workout experience.

I've just finished up the Import from Strong feature and would love any feedback on it!

https://apps.apple.com/au/app/hypertrophy-gym-workout-log/id...

https://leanpub.com/egolessengineering/

Egoless Engineering, a book about how to be an enabling staff engineer in the Nordic's largest mediahouse. I saved up vacation and took the whole of December off, mostly to relax. But I'm also working on more chapters for my book.

https://www.hedgy.works/

Helping friends (and friends of friends of friends of friends) find their next startup gig without the application process. Aspiring to be Wealthfront for your career… a passive optimization that pings you every now and then with an interesting interview you could take.

Thinking a lot about how to recognize great matches. I think basically everyone can be talented force multipliers in the right situation / company / mission / team. Everyone here wants to do their life’s work, but it’s hard to find it.

Tactically working to scale reliable human-in-the-loop AI recruiter agents with very few humans.

https://www.keepsakebox.app/

I was thinking about what to get my long-distance girlfriend for her birthday which coincidentally was also the anniversary of our first date. So I thought of building her a personal website, installable via tauri so she can view it offline whenever she wants, that has a timeline of all the things we went through: first date, events, trips, moves etc.

Now I want to polish this, make it customizable, add more features like a "Reasons I love you" jar which gives you random notes your partner wrote, and offer it to others as well.

Another thing, it should be a digital living collection of memories and notes for each other and should evolve with the relationship.

Just started with this and building with Elixir and Phoenix.

PS: I realize I might need to update the website. First I wanted it to be more generic and for multiple occasions like anniversaries, birthdays etc but slimming the target down to couples for now to not overwhelm myself. It's the first ever service I'm building.

Taking a break from software to remodel a house by myself. The plan was just to redo the kitchen and a bathroom and be done by August, so naturally it's now December here in Minnesota and the house is missing most of its wiring, pipes, insulation, and walls. :) I'm having a great time though and just started producing videos about it: https://youtube.com/shorts/6QDOXxh99PY?si=NOjvNVEVHwQt180A

Embar: https://github.com/carderne/embar

A Python ORM, inspired by Drizzle and the like. Whenever I come to Python I'm frustrated by the ORM options. They generally lack type-safety on inputs and outputs, or useful type hints.

SQLAlchemy is an institution but I think it's hard to use if it's not your full-time job. I check the docs for every query. I want something simple for the 80-99% of cases, that lets you drop easily into raw SQL for the remaining %.

I'm going to keep hacking at it, would love to from anyone who thinks this is worthwhile (or not). Also: - The interface for update queries is clunky. Should I add codegen? - Should I try to implement a SQL diffing engine (for migrations). Or just vendor sqldef/similar...?

https://apps.apple.com/us/app/options-at-the-money-premiums/...

I am working on the android version of this app. It is a tiny tool for options trader to see all the premium on one screen. Here is the reddit thread where I initially launched it: https://www.reddit.com/r/Optionswheel/comments/1nlelbp/i_mad...

If you trade stock or options, would love to get your feedback! Thank you.

Working on https://usedigest.com — a personalized daily digest.

It aggregates data from across the web into a single feed, pulling in news, weather, newsletters, social posts, Reddit, YouTube, and more.

I also finally launched my first iOS app that goes a step further. During onboarding, you set your preferences once. From there, AI automatically prepares your daily digest for you. Each morning, you get a notification when it’s ready, with everything relevant for the day ahead: meetings, weather, health data, commute insights, and the news you actually care about.

I'm making a cat themed puzzle game for my wife using NiceGUI, MindAR and some cat shaped sticky notes. Each note has a name and a secret code. I've hidden 20 of these around the house. I set up a single page app in NiceGUI to display a grid of the lost cats. When you click one it'll display their name, a clue to its hiding spot and an optional hint. 5 of the puzzles use MindAR that will display AR image cards over different art pieces and book covers in our house. I have the NiceGUI page and MindAR set up on one of my Proxmox LXCs that I use for various Flask servers.

I just finished https://www.lexaloffle.com/bbs/?pid=178450#p , my Signalis themed version of the Regicide card game.

It's mainly a distraction from enterprise programming, but it does have some parts that might be interesting to Lua programmers, like automated test suits, functional programming point free style and deploying to a raspberrypi via justfile.

The git README kinda doubles as a blog post: https://gitlab.com/michaelzinn/replicide

I am in the final testing stages for a bespoke recommender system to facilitate construction of EDH Decks.

The vibes are off at the moment, but goal is to do a show HN and a little PR a little closer to the holidays: https://mtg.derekrodriguez.dev/

I started a project involving several aviation tools while doing ground school for my private pilot license. It started as a way of learning the maths, and a replacement for the E6-B computer.

It is opensource, all the computations are done on the client side,

https://github.com/jfromaniello/joseflys

https://joseflys.com

An example of navigation https://joseflys.com/s/UGaIwnEY

I've spent the last week starting to hand port SeL4 to rust. Mostly because I want to learn how kernels & capabilities work. This seems like a fun way to get my hands dirty with operating systems without needing to invent everything from scratch.

To be clear, there's no benefit to using rust over C for SeL4. SeL4 is formally verified - which provides a level of assurance far beyond what the rust compiler can check at compile time. I'm really just doing it for fun and learning. I've been wanting to really understand sel4 for awhile, and there's something wonderful about learning it from the ground level.

So far, I've got a stub booting. The CPU successfully boots into 64 bit mode and starts running my rust code. I'm starting with x86_64 because thats whats on my desk. At the moment I'm porting the code which locates the root process via multiboot, so I can set everything up in memory correctly.

If anyone is curious, here's the repo: https://github.com/josephg/sel4-rs

Its pretty bare bones for now, but everything starts simple!

We’re working on an AI-first interview platform for developers: Valuate.dev The usual approach to coding tasks doesn’t work anymore - companies are looking for AI engineers, yet it’s still unclear how to assess AI proficiency.

Our goal is to design challenges that combine prompting + coding, allowing us to score both how well a candidate prompts and how good the resulting code is. The aim is to bring measurement to AI prompting skills - how well-aligned prompts are and how candidates handle LLM-generated code.

At the same time, we want to keep a strong human balance in the process: hiring is a two-way street, and screening shouldn’t be fully offloaded to AI. We’re human-first.

Several tasks are already live - you can try them here: https://valuate.dev

https://thingg.co -- A group of very smart people working on an incubator for our pet projects in a co-op manner.

https://cipher.social -- Distributed / p2p, encrypted social networking so I can send baby pictures to my mom.

I've built this website helper to browse these "What are you working on" comments: http://waywo.eamag.me/

Updated manually so expect some delay :)

I'm working on ffl (https://github.com/nuwainfo/ffl), an Actually Portable Executable (APE) that turns any file or folder into a secure P2P HTTPS link via WebRTC.

Like llamafile, it's built on Cosmopolitan Libc. Getting the full Python stack + WebRTC to run as a single APE binary was incredibly tricky to pull off, but the result is super convenient. I mainly built it to solve the pain of moving large files (logs, DB dumps) in and out of containers—now it's just one command.

The repo has a demo showing a round-trip transfer between Windows (x64) and Android (arm64) using the same binary. I hope you give it a try!

Most recently (yesterday), vibe coding a better interface for Roblox screen time: https://github.com/astrostl/blockblox . Claude Code crushes, and I'm preferring Go for everything I can to take advantage of typing, quality ecosystem, and distribution. Still need to implement the QE side on this as I have on other things.

Building https://programmer.network/ with a hope to eventually gather like minded nerds that value their privacy, time, and who don't want to be victims of engagement algorithms. Building it live on Twitch past couple of years, with very limited amount of time, but it's fun, engaging and still enjoyable.

Hyperclay: a way to package up HTML files as portable, editable apps that contain their own editable UI. I'm using these simple apps to plan, edit emails, write blog posts, and a lot more. I edit them on my mac and they sync to the web live.

It feels like being able to design my own document format on the fly and display it however I want. It's making it painfully obvious how many editable primitives the web is missing, however.

https://hyperclay.com/

I’m still working on MLSync.io, an ETL platform designed to remove the technical friction of synchronizing MLS data using RESO protocol and provide simple access to the MLS data via SQL and REST API.

And as everyone now, I'm experimenting with LLMs to bring some new AI-related features to the service.

On another project, we've now beta testing (in ordination) Asus GX10 processing power running on-device LLMs for _local_ processing of patient medical data for 'differential diagnoses, implant plans and risk profiles in real time while the patient is in still in the chair'.

[1] https://MLSync.io

I just released the first alpha version of my RISC-V hobby kernel, written in Ada: https://github.com/ajxs/straylight

My next step is documenting how all of the subsystems work (such as virtual memory, allocators, drivers, etc.), then lay the project to rest. I don't have any grand ambitions for the kernel. The project was just a labor of love, and a way to learn some interesting things! Hopefully some of the documentation can serve as learning material for other people interested in osdev.

https://techtalksweekly.io/

I'm working on Tech Talks Weekly which is a free weekly email with all the recently published Software Engineering podcasts and conference talks in the past 7 days.

Every week I pull all the new talk recordings from hundreds of conferences (Devoxx, KubeCon, PyCon, QCon, LeadDev, JSNation, and many more) and even more podcasts podcasts. I feature the ones I think are must-watch with short summaries written by me, then include a list of everything else uploaded that week.

It started as a personal project to fix my own messy YT subscriptions and RSS feeds and now 7,500+ people read it.

I also publish extra editions from time to time like “The Most Watched Talks of 2024” which made it to the HN front page.

If you watch software engineering conference talks or listen to podcasts, you might find it useful.

I’d love to know what you think!

https://finbodhi.com — It helps you track, understand, and plan your personal finances — with a double-entry accounting. You own your financial data. It’s local-first, syncs across devices, and everything’s encrypted in transit. Supports multiple-accounts (track as a family or even as an advisor), multi-currency, a custom sheet/calculator to operate on your accounts (calculate taxes etc) and much more.

Soon, we will have benchmarking capability. You would be able to compare your networth growth with inflation, compare your investment returns with benchmark etc. We would support both nav and value based benchmark. The topic is interesting in itself, and somehow, not emphasized/available in most tools.

Asset price fetching and benchmarking works best for Indian markets. We would like to build better support for international assets and benchmarks, but haven't figured how to get the data.

NOTE: you can try demo without signup, but it doesn't work in Firefox Incognito mode.

Currently working on Skyscraper, which is an iOS native Bluesky client: https://testflight.apple.com/join/RRvk14ks

Primary goal with the project was to create a Bluesky client that I wanted to to use. While the standard Bluesky app is fine, I wanted something more reminiscent of Tweetie, Tweetbot, Twitteriffic, etc. Something that feels at home on the iPhone. With the transition to Liquid Glass, felt like a good time to practice and get to experience the new UI with a new project.

Still in what I call "alpha", but pretty feature rich. Support push notifications, lots of discovery/feed following features, search tools, moderation setting management, post translation, and much more.

If you use Bluesky and are an iOS user, there's still space on my TestFlight and would appreciate any feedback or comments!

Making a realism game mod to Battlefield 6, which recently came out.

If you have played military sim (Milsim) games like Project Reality, Squad or Arma you might appreciate it.

Its quite cool how the game devs have made a lot of tooling to use; they use Typescript to hook into in-game events and functions.

There is a whole community making lots of content too:- https://bfportal.gg/

Currently I am working on an insurgency game mode; where one team has to defend some caches and use guerilla tactics, whilst the other team has a smaller size but the advantage of firepower and vehicles.

Hopefully have it released by Christmas time.

I'm working on building out a microservice ecosystem on OCI. I'm not formally educated so I just sort of stack things up and tear them down. I hardened my server and I am running dockerized services. I'm also running a web server that hosts the very start of my long-term personal site. It's been pretty challenging, illuminating, and down right fun. I've been putting down the controller for a terminal!

Seriously, I'm very proud of myself for the little I've accomplished so far. I don't have friends in tech so I don't get to talk about it or bounce ideas off people.

Thanks for letting me get that out!

I'm working on an experimental display server, for educational purposes and fun:

https://terminal.pink/bgce/index.html

Or https://github.com/blmayer/bgce

The idea is to have the minimum needed for a usable graphical experience. So drawing to drm buffer and handling inputs basically. It's been fun to do.

I am build a toolkit for it too:

https://terminal.pink/bgtk/index.html

Or https://github.com/blmayer/bgtk

I think it is nice that we can just write to a buffer and it appears on the screen. Very little abstraction is needed. Hope you like it.

I also made some progress on my hardware projects, but I'll keep a low profile for now.

I’m working on a Free and Open-Source Invoice Generator: https://easyinvoicepdf.com/?template=stripe

GitHub: https://github.com/VladSez/easy-invoice-pdf

Features:

- No sign-up, works entirely in-browser

- Live PDF preview + instant download

- VAT EU support + custom tax format coming very soon

- Shareable invoice links

- Multi-language (10+) & multi-currency

- Stripe and default templates

- Mobile-friendly

Would love feedback, contributions, or ideas for other templates/features.

Working on Bold (https://boldvideo.com)

Video intelligence platform for coaching programs and training companies. The problem: these businesses sit on 200-500+ hours of video content that becomes a "content graveyard" - students can't find what they need, coaches burn out answering the same questions, churn stays high.

We do deep transcript + metadata extraction, then layer RAG search and an AI assistant that can answer questions with timestamped citations back to the exact video moment. Think "ChatGPT for your video library" but with accurate sources instead of hallucinations. Tech: Phoenix/Elixir backend, Next.js portals, two-tier RAG architecture.

Currently serving a few coaching programs in high-touch sales mode. Would love feedback from anyone who's built RAG systems over media content - curious how others handle the signal extraction problem (transcripts are noisy, you need to identify what's actually being taught vs filler).

I just built myself a DYI TRMNL (https://taoofmac.com/space/reviews/2025/12/13/2200), decided to hack together my own server for it, and (serendipitously) got asked if it could be an official contribution: https://github.com/usetrmnl/byos_fastapi

Then I decided to hack my own ZigBee power meter (to keep track of my meter’s LED pulses) and fought with CMake for eight hours straight, because embedded.

It was a nice weekend.

LLMatcher - blind testing arena to find which AI model actually works best for you.

You enter prompts, compare two anonymous responses, pick the better one. After voting, it reveals which models you preferred. Built it because model benchmarks don't match real-world preference, and blind pairwise comparison cuts through the hype.

http://llmatcher.com

I am learning Unreal Engine for a year. im almost half way through and am making a simple Space Invaders clone which I will publish on steam for free.

Back in 2019 I created a Google Spreadsheet titled "family debts" that allows my family (4 siblings and my parents) to record when we owe each other money, and periodically settle up. I later learned that I recreated Splitwise, but having something like this with trusted folks has been hugely useful. We have over thousand entries, and use it constantly for splitting gifts, buying something at the store for someone, etc.

Om Friday after Thanksgiving I spent half a day building a telegram bot that accepts an address and a list of Amazon links, and in turn orders the item (at a discount since it uses my Amazon credit card), and adds it to the above "family debts" spreadsheet.

I really like the idea of programmable, trusted lending like this, and feel like it could be extended to other groups that you implicitly trust.

Codorex (https://codorex.com) - Kids describe games in plain English, AI generates playable HTML5/Canvas code in seconds.

Built it for my 10yo. Solo dev, .NET + Claude Haiku. Free to try, no signup.

I've spent a considerable amount of my free time over the last few years working on an open-source game engine for making Zelda-like games (link in profile). It's been around for a few decades, and I played it when I was a kid - and now I'm contributing heavily to it. To give a since of scale, there's ~1000 custom fangames made in this: so pretty niche, but if your thing is Zelda it's got some real gems.

Most of my time has been spent practically rewriting the engine from just single-screen play areas (like Zelda 1) to be free-scrolling (like Zelda 3). I've also put lots of work into supporting all platforms (was just Windows; now it's also Mac/Linux/Web). And I've delved into tons of interesting programming projects while working on this: a deterministic record + replay testing system; a garbage collector for our custom scripting language; JIT compilers for x64 + WASM; a VS Code language server; the list goes on...

Anyhow, this month I'm trying to polish it up as much as I can so we can officially release the next major version.

Wanted to save up a few tokens when passing data to LLMs and did not like anything on the market, so I made minemizer.

Minemizer is a data formatter that produces csv-like output, but supports nested and sparse data, is human readable and super simple.

It produces even less tokens than csv for flat data, due to most tokenizers better tokenizing full words that contain a space before the word, and leads to less fragmentation.

There are many cool things I discovered while running tons of testing and benchmarking, but it's getting late here.

Code, benchmarks, tokenization examples and everything else can be found in the repo, but it is still very WIP: https://github.com/ashirviskas/minemizer

Or here: https://ashirviskas.github.io

EDIT: Ignore latency timings and token counts in "LLM Accuracy Summary" in benchmarks as different size datasets were used to generate accuacy numbers while I was running tons of experiments. For accurate compression numbers see compression benchmarks results. Or each benchmark one by one.

I will eventually fix all the benchmark numbers to be representative.

A fully automated time-tracker that feeds screenshots into llms to help you spend your time where it matters to you.

https://donethat.ai

With lot's of built-in data privacy safeguards https://donethat.ai/data

Also made an overview of similar tools out there https://donethat.ai/compare

Recently broke on Linux with a Wayland security update, working on a fix! Using Electron for cross-platform.

https://inventronix.club/connect

I just finished building my own IoT platform and I’m honestly so proud of it.

It’s completely free. Please try it out it would mean the world to me! Would love some feedback.

N.B. Finished the landing page and docs this morning. Done I’d better than perfect so expect some rough edges.

We've been building https://nimstrata.com/ for almost three years now, we put Google's Vertex AI product discovery algorithms on Shopify and Salesforce ecommerce storefronts.

At a high level, Google does not have a product culture, so there is a lot of white space for companies like ours to make adopting Google Cloud APIs much easier for less technical users.

It's also wild how much Agentic AI is creeping into all of our conversations - this space is constantly evolving as we're building.

An AI assistant plugin for Logseq. https://github.com/shovon/logseq-ai

It allows users to "chat" with their Logseq graph. Think of it like a "Cursor for Logseq". I hope people find it useful. I have on numerous occasion wished that I could have easily asked about a specific block on my graph, and would provide an intelligent response, also somewhat influenced by the contents of the entire graph. It's still a work in progress.

It's fully open source.

Working on Tenderlane: https://tenderlane.app/

Freight forwarders spend days or sometimes even weeks understanding and answering tenders without even knowing if they'll win the bid!

With Tenderlane, they can now upload the entire tender spec and get an overview of what the customer wants in minutes instead.

One key learning for this project is that I'm using Excel as the "frontend" as this is what our users are most familiar with, so lots of processes involved filling, uploading and downloading an Excel file.

Building this with Elixir/Phoenix LiveView.

I’m working on Universymbols, which lets you restyle icons to match your app’s icon set, like SF Symbols, Material Symbols, and many more.

It uses a pipeline involving several AI models, including Nano Banana and OpenAI’s gpt-image-1 for the raw image generation.

https://universymbols.com/

Building https://canonicalschema.com/, I started with a simple CSV viewer because none of the existing online tools supported large files or provided flexible column statistics and filtering to easily understand the data. My plan is to grow it into a full application where users can more easily manipulate and analyze CSV or spreadsheet data.

I have been working on a customizable AI voice dictation tool using Pipecat's framework to swap between many providers and models, including cloud or local.

Started off as an open source alternative to Wispr Flow for myself as I wanted to have more control over the formatting rules as well as model choice but after sharing with friends and presenting it at my local Claude Code meetup, I was encouraged to share it more widely.

The desktop app uses tauri so it is cross-platform compatible and I have tested it working on macOS and windows.

https://github.com/kstonekuan/tambourine-voice

I am working on two things.

The first is a customizable digital math workbook. Currently the demo covers fourth grade math. There is a practice mode where you can select the skills you to want practice. There is also a customizable dashboard where you can setup your own widgets to practice math skills in different ways. I am working on some pre-made dashboards to help users get started. The next plan is to cover fifth grade math skills. My plan is to cover first grade math up to Calculus and High School Physics. I envision it as a companion tool for Khan Academy/Math Class/Math Books. Check out the demo. No signup required. Progress is only stored locally.

https://demo.numerikos.com/

The second thing I am working on is an application to practice Cangjie. It's a Chinese input method that has been around for a long time. It is based on a visual decomposition of characters. Each character is represented by one to five codes and the majority are unique. My application teaches Cangjie like keyboarding (QWERTY) is taught to young students. You learn the location of the keys, then some basic words, then start typing sentences. I also have a free demo for it as well.

https://demo.cangjieworkbook.com

Feedback on either project would be appreciated.

I'm in crunch mode doing the internationalization and localization of my spreadsheet engine. This is a rabbit hole and a nightmare in Excel, so a big opportunity for us to get this right.

This is the PR: https://github.com/ironcalc/IronCalc/pull/616

Feel free to comment and destroy it!

You can test it in: https://testing.ironcalc.com

I've decided to take a break from working on Pirsch Analytics (pirsch.io) until next year and focus on some side projects instead:

1. Shifu (https://github.com/emvi/shifu) - a code-based CMS with admin UI. It's really easy to set up, written in Go, free and open-source, and I already sold a few websites using it. It can be used as kind of a framework to build more specialized features into a website and takes away the maintenance hell from managing a WordPress installation or a similiar CMS with tons of plugins that break with every update.

2. Zenko (working title, repo is private for now) - a very simple and no-bullshit project management software. It will be free and open-source, but I might offer a hosted option for a few bucks (like $20/year for all users of a team). I mainly build this for ourself to replace Linear, because we don't really make use of it. Don't get me wrong, Linear is awesome, but we basically only need an advanced Todo list. Main goals:

* Pull updates on the dashboard by yourself, instead of receiving notifications all the time via email

* Keep it simple stupid - no unnecessary features, no AI, just the bare minimum

* Cheap (for the hosted version, free if self-hosted) and easy to host (again written in Go)

* No feature-creep

3. Last but not least, I'm working on a "game engine" written in Go and SDL2. I do this for fun, but it is coming along nicely and teached me a few new concepts already (like ECS in Go).

I’m building an online memorial product in China, currently used via a WeChat mini-app and web pages by local governments and cemeteries for digital remembrance.

I’m now exploring a global version (web + app) for families worldwide — especially those separated by distance.

The current product is in Chinese, but the idea is universal. I’d love feedback, and I’m open to marketing or distribution collaborations.

Product (Chinese): https://www.yunmu13.cn/products/

https://upwards.dev/

I am currently on the job hunt and made a job application tracker. It's a CSR React app that uses LiveStore (https://livestore.dev/), a reactive state library built on top of WASM, SQLite, and OPFS. The app enables you to track applications, leave notes and updates, and gain insights into your data, while storing your data completely within the browser.

*Supex* - Agentic coding for SketchUp.

Working on a house renovation project in SketchUp, I wanted the same workflow I use with Claude Code: describe what I need in natural language, let AI write and execute the code, iterate quickly.

So I built a bridge. Python MCP driver talks to a Ruby extension inside SketchUp via JSON-RPC. Claude Code can now write Ruby scripts, execute them directly in SketchUp, take screenshots to verify results, and introspect the model - all without leaving the conversation.

Still very early (macOS only, requires SketchUp 2026), but it's already useful for repetitive tasks and parametric designs. "Create a spiral staircase with 15 steps at 18cm rise" is more fun than drawing it manually.

https://github.com/darwin/supex https://github.com/darwin/supex/tree/example-simple-table

I’m working on Yomu, an iOS app for reading Japanese text with adjustable furigana.

I’m learning Japanese myself (recently took JLPT N4), and I noticed that full furigana makes me rely on readings instead of actually reading kanji. Yomu lets you hide furigana for kanji up to your level and keep it for harder ones.

It’s offline-first, supports importing text from anywhere, camera OCR, and a fast dictionary.

https://yomuapp.kulman.sk

Ready-to-use 'field kits' for the jetson orin nano which include a dual imx219 camera, bootable m.2 nvme ssd, and a 3d printed case with camera mount.

https://implyinfer.com

Have been working on an app to capture thoughts and to make sense of them with a timeline view. Have posted the first version here and got a lot of suggestions so that we continue working and now release an open testing version to play store. If anyone interested in trying please visit

https://play.google.com/store/apps/details?id=com.upbrew.tho...

I'm working on finishing my JS KV compatibility library polystore [0], the goal is to make a widely compatible library to connect to many stores so that you can have a wide range of stores easily accesible.

For example, you make an API client library, now you can add polystore and accept multiple cache stores without writing all the compat layer yourself. This is a problem I've had multiple times in the past.

Or you make a project with cache, having it in files for local dev (highly debuggable) and then with Redis in prod is a simple ENV var change:

    let store;
    if (process.env.REDIS_URL) {
      store = kv(RedisClient(process.env.REDIS_URL).connect());
    } else {
      store = kv(`file://${process.cwd()}/cache/`);
    } 

[0] https://polystore.dev/

I'm working on a no-code admin dashboard.

A small startup generally needs to explore and edit the production data. They would either build an admin dashboard, which is expensive, or use a database tool, which is bad for security. Not to mention a tool like pgadmin and dbeaver is clunky because they focus on database administration.

Backdoor is a self-hostable database querying and editing tool for teams. It reduces the need of an expensive admin dashboard. You can configure access control and validation policy for each user. The activities are tracked. It saves money and time, and it's more secure.

You can have your non-technical CEO, customer support, and sales to edit the production data in a safe and secure manner.

It currently supports Postgres and ClickHouse.

I'm looking for early users to iterate with. If this resonates with you, please reach out to me through the github repo: https://github.com/tanin47/backdoor

How can I train an AI on me doing sensitive work.

I'm building out a new concept around training AI computer use agents on real sensitive tasks without PII exposure. My first demo releasing soon is a dataset of AI agent with human assisted tasks on things like paying my personal credit card or doing bank transfers.

Main things: 1. I don't modify the website I operate on 2. I take full videos and record all AI agent logs and all human actions 3. I don't modify any of those logs and will release them to the public.

I am working towards a future where AI companies are paid to generate the data they need for AI agent operations instead of paying massive sums to generate synthetic data. Imagine a future where labeling companies are completely sidestepped by simply training on production tasks directly.

Redactsure.com

I've been hard at work building a weightlifting workout tracking & analytics app. Its main selling points are being iOS native, being a one-time purchase, and being completely private (does not depend on a backend, but still saves data to the cloud).

If it sounds interesting, you can sign up for a waitlist here, it even includes some screenshots: https://plates.framer.website/ (excuse the website being on a framer domain, i promise the app is far more professional)

https://rounak.taptappers.club/fitness

I crunched Strava data (the Strava MCP project is incredible, and I ended up contributing to it!) and built myself this fitness hall of fame page (and also rejuvenated the remainder of the portfolio). Almost all of the stuff here is vibe coded, very happy how much I could achieve.

I'm working on a hardware/software utility to play Switch/Switch 2 games remotely with my brothers. I found a way to emulate a Switch Pro Controller using a Raspberry Pi Pico based on several different sources (look in the README for more info). I used that to write a firmware for the Pico (with the help of GPT Codex 5.1).

Then I wrote a Python program that connects whatever controller my brothers want to use (as long as it's supported by SDL2.0) and forwards that data from their computer, through Parsec, through a USB-UART adapter, to the Pico, then to the Switch. I then have a low latency capture card (Magewell Pro Dual HDMI I got off of ebay for $100) forwarding the video and audio from the Switch to my PC which I share to my brothers via Parsec. The audio was a bit tricky to get right, and ended up having to use a Virtual audio cable and Voicemeeter potato (a software audio mixer) so that both myself and my brothers could hear the audio.

It works surprisingly well and the latency is pretty low. I even got rumble working! (but not motion controls. If anyone wants to attempt it, I will accept PRs). I haven't done any formal benchmarking for performance, but my brothers and I were able to play Smash Ultimate without too much bother about latency.

You could also use the accessory Python library I made to automate switch controller presses (look in the examples directory). Might be useful for TAS speedruns?

The project is here for anyone interested. It's a bit rough and needs some cleanup and maybe a video tutorial on remote setup. But here is the WIP:

https://github.com/jyapayne/switch-pico

https://bookpace.pages.dev

It's essentially a book progress tracker. There are many apps that allow you to add the books which you are reading currently, but not at what pace. It's simple, no complicated stuff, no AI shenanigans.

Created as I was overwhelmed by the number of books I want to read and thought it would be helpful to plan ahead.

You add a book name, number of pages and how many pages you want to read in a day. It calculates and gives you the number of days and on which date you will finish. It's also flexible to increase the number of pages so that it can recalculate.

It's a PWA for now. Still working on notifications and stuff.

https://wordcollector.netlify.app An offline dictionary in your browser. Dictionary is pulled from the open source wordnet dataset and cached in browser as a sqlite database. Installable as a PWA as well. Working on adding a study mode to review words that you’ve looked up in the past to help commit them to memory and adding synonyms and antonyms. Plans to add multiple languages in the future so you could use this as a language learning tool as well.

https://ideawell.fly.dev/ - business idea generator based on the HN conversations (launched yesterday)

I recently open-sourced my first ever tool! and I'm super excited about it guys

It's an HTTP request replay and comparison tool in Go. You can replay real traffic, compare multiple environments, detect broken endpoints, generate HTML/JSON reports, and analyze latency

It’s currently at v0.4, so I’d love any feedback, suggestions, or ideas for improvements. (Be gentle, I haven’t used Go professionally, however it’s my main language for personal projects )

https://github.com/kx0101/replayer

Here's the landing page too: https://www.replayer.online/

https://playwriter.dev

A browser automation Chrome extension and MCP. It consumes less context than playwright MCP and is more capable: it uses the playwright API directly, the Chrome extension is a CDP protocol proxy via WebSockets.

I use it for automating workflows in development but also filing taxes and other boring tasks

Super specific use case, only a handful of users(mostly friends with free account). https://apps.apple.com/nl/app/multipark-amsterdam/id67469835...

Use Case: Assumption: You have access to your friends visitor parking login in Amsterdam.

You are going to a restaurant/or visiting a place near their parking zone(geo fenced polygon). You want to pinpoint a point in map and drive to that point. Being 100% sure that you can park at that point. Automatically pick a meter near there spot and park almost instantaneously. Then this app is for you :D

Plug-That-In [https://plugthat.in] (Mac App; Paid)

An annoying little laptop charging reminder utility that does the job.

---

There are times when I'm deeply immersed in focused work, a meeting, or engaging video content and end up missing the usual low-battery notifications on my MacBook.

When the laptop suddenly shuts down, it's followed by the familiar and frustrating walk to find a charger or power outlet. It can be annoying and occasionally embarrassing, especially when rejoining a session a few minutes later with, "Sorry, my battery died."

Over the past few weekends, I built Plug-That-In, an app that introduces "floating/moving notifications". These alerts follow the cursor, providing a stronger, harder-to-miss nudge regardless of what’s happening on screen.

The app also includes a few critical features:

- Reminder Mode: When the battery reaches critical levels, the app emits a configurable alert similar to a car's seatbelt warning, continuing until the battery is addressed.

- Do Not Disturb Settings: Customize alerts and sounds based on context, such as when system audio is playing, a video is active, or the camera is in use.

It grew out of a personal need, and I'm glad to see it used by over 50 people in the past month.

I got a couple new toys for birthday/xmas: the GPD MicroPC 2 UMPC and the M5Stack Cardputer.

The MicroPC is great because it makes it super easy to code and hack on something in places where it would be too awkward or annoying to whip out my laptop, and the Cardputer is just a fun little toy because it's so open ended and hackable. I've been writing an app for Cardputer to control my thermostat remotely, and I've had a lot of fun grossly overengineering the needless amount of concurrency I have added through FreeRTOS.

Something oddly satisfying about using a micro PC to program an "even more micro" PC. What a cool time to be alive; I would have killed for this kind of stuff as a teenager!

i’m working on Canva like app for automated image/pdf/video via API, also connects with n8n, zapier, make, airtable, pipedream etc.

it’s https://orshot.com

it’s being used by agencies and teams to automate pdf invoice/reports, instagram/tiktok/pinterest posts etc.

basically design a template, autofill the layers with your data from anywhere and generate visual content for marketing at scale

At work I'm working on autonomous agents for web application testing, and in my spare time I've been taking some part-time evening courses at the local university for the first time.

Last term I did a course on nuclear weapons and disarmament (and learned to write my first ever academic report!)[0], and this term I'm just about to give a final presentation for an introductory life sciences course (actually just posted a runthrough recording [1]). Next term I'm hoping to get into a course about cosmology!

[0] https://liza.io/categories/2fk064/

[1] https://liza.io/the-body-electric-manipulating-large-scale-a...

After reading an article about doing 10,000 pushups in a year (https://wjgilmore.com/articles/10000-pushups), I created "push10k", an iOS app to help me keep track and stay motivated. It's free (no money, no ads) in the iOS app store: https://apps.apple.com/us/app/push10k/id6754811078.

Listing all the AI horror stories on https://whenaifail.com

just finished a organization project for my wife.

its a web app where you make boxes, add images or text of what's in the box. then get a qr code that you can tape to the box and scan to see the text or images in the web app.

hoping to make it a lot easier to look for things in the storage unit. instead of removing all the totes and looking in them. Just scan and see if the description fits what I'm looking for

https://github.com/rush86999/atom

Marketing line: Atom is your conversational AI agent that automates complex workflows through natural language chat. Now with Computer Use Agent capabilities, Atom can see and interact with your desktop applications, automate repetitive tasks, and create visual workflows that bridge web services with local desktop software.

work in progress

On Thursday I learned about ulid[0] which I think really neatly solves the problem of text representation for UUID v7. However, I also like the idea of prefixed ids, although I haven't used them in anger.

Yesterday I built most of a Postgres extension, using the excellent pgrx[1] project, that build on ulid to add prefixes. With it you get something like this

    plid=# SELECT gen_plid('u');
             gen_plid
    ---------------------------
     u_06DHRQH6SJT7N2WEQK4910R
    (1 row)

I haven't pushed it to GitHub yet, but it's fairly done at this point.

0: https://github.com/ulid/spec

1: https://github.com/pgcentralfoundation/pgrx

https://charityrecord.com

I'm working on a charitable donation tracker for taxpayers. My wife and I used Intuit's ItsDeductible for years until it shut down in October. With a little encouragement, I built Charity Record.

The stack is Django 5.2 (I know, I know, I'm looking at 6 now), Postgres, and HTMX + Alpine.js for interactivity. I'm using Polar for subscriptions. It's running on the $12/mo DigitalOcean droplet.

Trickiest parts so far: TXF export (we can trace TXF back to the 1990s...) and PDF generation. At one point when working on PDFs, WeasyPrint was deadlocking a single-worker setup because it fetched the logo via HTTP. (Base64-embedding the logo got me past that, ha.)

Happy to answer questions about the app or running Django lean - I've got a few longer running Django projects.

A bunch of little electronic pin badges that I’m using to fund bigger projects

https://hortus.dev/s/badges

Currently in the works are a digital sand timer which can be used to track pomodoros (or any sequence of time intervals), and a Jovian orrery which displays the positions of Jupiter’s moons on a strip of addressable LEDs.

I'm migrating my current Google Sheets solution to a web application that I will primarily use for expense tracking and budgeting. I'm learning Golang so this is a perfect opportunity for me to build something meaningful.

Two main aspects will be to do Exploratory Data Analysis and to forecast expenses.

For later stage, I am planning to create a conversational interface for the application that I will use to do basic CRUD operations as well as capability to "talk" to my data and to do simulations using hypothetical yet real scenarios in future.

Building Contextify - a MacOS application that consumes Claude Code and Codex transcripts, stores them in a local sql db.

The main window uses Apple’s local LLM to summarize your conversation in realtime, with some swoopty UI like QUEUED state on Claude Code.

I’ve just added macOS Sequoia support and a really cool CLI with Claude Code skill allowing seamless integration of information from your conversational history into aI’s responses to questions about your development history.

The CLI interface contract was designed to mutual agreement between Claude code and codex with the goal of satisfying their preferences for RAG.

This new query feature and pre-Tahoe support should be out this week, but you can download the app now on the App Store or as a DMG.

I’m very excited about this App and I would love to get any feedback from people here on HN!

https://contextify.sh

My Show HN: from this past week has a short demo video and a bit more info:

https://news.ycombinator.com/item?id=46209081

I'm building a temperature controlled dough proofing enclosure based on ESP32, an IKEA Samla storage box and an inexpensive silicone rubber heater. It's delightfully impractical-- purely a first hardware/MCU learning project and a holiday gift for a relative who I think will appreciate it.

I'm impressed by how far I can get "vibe making". Most of my professional experience is in high-level software, but AI gets me unstuck quickly when I don't know something specific to ESP-IDF or the hardware. As of today I've got a circuit tested, firmware nearly complete, and a custom PCB en route from JLCPCB.

One limitation I’ve noticed: ChatGPT struggles with the details of part selection (e.g. choosing specific temp/humidity sensors or connectors). Adding datasheets to the context helps a lot, which makes me wonder why this isn’t something the model can do or at least ask for.

https://angryangels.sarah-rosenhahn.de/try-the-cemetery-of-f...

please don't hug to death, I only got 10 GB of Data

it's 1st MVP and I got a dayjob, so please be kind. Haven't put out a howto yet, but ideally you have a notebook and a pen, some memories and grief to work through.

https://dbpro.app

We are working on DB Pro, a modern desktop data workbench for developers and data engineers.

The focus is on going beyond a query editor and building a complete environment for working with data. Visual exploration, inline editing, dashboards, and Jupyter notebook style workbooks for queries, notes, and experiments all in one place.

We launched v1 a few weeks ago and the reaction has been genuinely jaw dropping. Downloads, feedback, feature requests, and some great long form discussions around real world data workflows.

We are documenting the entire journey through a public devlog series. The latest video covers the v1 launch.

https://youtu.be/-T4GcJuV1rM

Honestly, building a desktop app is so refreshing after spending a decade or so building web apps.

https://fooqux.com/ - an experimental article aggregator about software development. For several years now, I've had a routine of collecting articles on topics that interest me throughout the week and then reading them over the weekend. To help organize and streamline this process, I created this website. The main idea is to gather tech articles in one place and process them with a LLM — categorize them, generate summaries, and try experimental features like annotations, questions, etc. I hope this service might be useful to others as well.

Published my first AUR package this week. It's called bleep, a simple interval timer that beeps.

The idea came from cooking bolognese. I needed something to remind me when to stir. So I wrote a small Go tool that just beeps at whatever interval(s) you set.

Then I kept adding stuff. Verbose mode with a live countdown, pause/resume with signals, and a JSON output mode that works with Waybar. That last one is actually my favorite part. I get a little timer in my status bar that changes color when it's counting, paused, or beeping. Click to pause. Works great for pomodoro or just keeping track of things while working.

I switched from Mac to Arch and wanted to try the whole AUR thing. Used GoReleaser to automate the build and publish. Took some fiddling but it works now.

https://github.com/Gioni06/bleep

AUR: yay -S bleep-bin

I've been building out my portfolio at https://verdient.co.uk/ and writing more blog posts about applied maths on my blog at https://tom-dickson.com/

Most recently I've been having fun extending the functionality on a website I use to host tools that help me structure and plan workouts - https://ironvolume.com/

I’ve made AI browser that others do but having full control.

https://www.gnunae.com (그네)

It was my weekend 1-day hackathon yesterday building Electron-based web browser connected with PlayWright MCP and local Codex as LLM backend.

Yes, you need to be ChatGPT Pro+ to use, because Codex has no usage fee unlike API Key.

GPT-5.1-Codex-Max can handle really complex web task without templating DOM. Codex-Mini is fast so you can pick models. It does my job applying task to any of recruiting sites with no interactions. (with persistent data store, which is currently disabled on published version)

I have built a AI powered home improvement platform with live consultation with pros.

I am not sure if I will go live with it.

It allows those professionals experts across the USA provide help to Do It yourself consumers for a fee. Consumers can be anywhere.

So I married sort of like Uber (rent skills) + upwork (rent + fees) + FaceTime + e-commerce. realtime audio transcription that identifies parts you need and builds a list for pros and you to review which you then go shop.

: Meet Handy — AI + Live Experts for Every Fix.

: Instant, intelligent home-improvement help — see it, solve it, and shop for it, all in one live session.

Live Video Calls with Pros Instantly connect with verified experts via real-time video. No scheduling hassle — just point your camera and get help.

AI-Powered Visual Assistance HandyLens AI analyzes what the camera sees, highlights problem areas, and guides both consumer and pro with contextual prompts.

Domain Expertise Specialized AI Packs (Plumbing, Electrical, HVAC, Painting, etc.) ensure every session applies the right technical and safety knowledge.

Actionable Fix Path Each call ends with a clear, AI-generated “Fix Report”: what to do, parts needed, and next steps.

Commerce & Trust Built-In Integrates with retailer catalogs for instant part links, and captures verified pro ratings and summaries for quality assurance.

I built https://nofone.io . I ingest health insurance policies and provide insights to insurers on how to improve them and doctors to know what insurers expect to see in documentation and evidence. My hope is to improve the denial situation and standardize medical necessity criteria down the line.

https://bobalearn.org/

Site where you can read and generate graded Chinese stories, in order to learn Chinese. What's a graded story? It's one written with the vocab of a {X} year old. Words are often repeated, so that you can learn from the left-and-right context. I normally pay for book versions of these, so I thought, why not make one that's online and free?

https://potniq.com

It's a travel tool for business travelers that figures out your suggested departure times for your entire itinerary based on predicted traffic patterns. Think Flighty but for all the non-flight parts of your trip.

You first build a travel itinerary with your legs - flights, activities, hotels (and hotel returns) and it tells you things like "leave your hotel at 7:40am" before your 8:30 meeting - in a single itinerary, no need to do the google maps acrobatics for every two items in your itinerary. While it's aimed at frequent business travellers I personally use it for all family leisure travel and daily itineraries around town as well - "do I have time for lunch at home after my son's class or should we bring packed lunch". I built it as during my time working in developer relations I traveled a lot, and always built unnecessary buffers and kept nervously glancing at my watch or phone to see if my planned time to leave still holds.

Tech-wise, currently it's Remix web app with a NodeJS/Fastify backend and Supabase for storage, and relying on google maps for route duration calculations. I want to expand it to native mobile clients in the future as well.

I am using it as playground on product thinking, ruthless prioritisation based on user benefit, figuring out unit pricing and economics, sensible architectural design, and exploring how including AI-enhanced features here and there can help make the product better, not just include them for their own sake.

I am redesigning how I blog and create content with https://lakyai.com

I am also writing an "indie book" on getting to $100k revenue (and I write it inside LakyAI, no less!).

"WallMod" -> wallpaper manager and modifier and autosetter. Kinda like wallpaper engine but instead tailored specifically to static images since I don't like animated ones personally. https://github.com/DefrimBinakaj/WallMod

Open to suggestions :)

I've built a web app primarily for my Hiking Club but then my plan is to also sell it to others.

https://mojtim.ba/en/

'Vibe coded' this in about a week recently. The app is also available in English and has a demo account available.

I wrote about the building process on my Linkedin (https://www.linkedin.com/feed/update/urn:li:activity:7404469...)

An Obsidian plugin that makes life tracking easier: https://www.dsebastien.net/announcing-life-tracker-a-new-obs...

Cross-platform game framework for/in the Odin programming language. It's also the foundation for my first Steam release. The plan is to get something out on Steam, roll with the punches (bugs,) then open it up for general-use. I say "framework" instead of "engine" because the scope of the project is to make the decisions the beginners get stuck on and free them to make a game. That's a smaller goal than what you see with Unity, Godot and Unreal, but I am already at the point that I'd rather use my thing than Godot.

n-gate2.com/hackernews

miss you buddy :'(

I've been working on the same business since 2021:

https://notionbackups.com

The first business I started never gained traction, so I sold it in 2021 (which was a completely different time compared to now).

Notion had announced that they'd launch a beta version of their API, so while waiting for the early access, I built a landing page, login/signup, and all other plumbing for the web app.

It was a rather underwhelming launch (both for the API and my business), but I gained my first customer within a month.

Honestly, it's been a slog running this business (Notion's API is surprisingly hard to work with, so it seemed that I was stuck for months on end), so knowing what I know now, I'd probably have started a different business. My burnout didn't help either.

Claude has been incredibly helpful these last few months in solving esoteric undocumented edge cases that were plaguing the codebase for years.

I have a healthy MRR/growth rate right now and the biggest product in the niche, so I'm grateful for that.

Working on an MPC stack to make it easier for devs to integrate privacy into their stacks. As normal folks increasingly value the privacy of their data, developers will need to think about how they can build apps while guarding their users' data. We provide tooling for them to do this.

Still WIP but we are getting our first audit in the coming days!

Stoffel-Lang:https://github.com/Stoffel-Labs/Stoffel-Lang StoffelVM: https://github.com/Stoffel-Labs/StoffelVM MPC protocols: github.com/Stoffel-Labs/mpc-protocols Website: stoffelmpc.com

Building https://localhero.ai, automated on-brand i18n translations that run in your CI pipeline. Right now I'm working on better .po/gettext support, based on feedback from an early customer. With gettext you usually keeps source strings in the actual source code. So I'm building a workflow where non-technical people (PMs, designers) can edit translations in the web UI and then easily generate a PR with both code changes and translation file updates. Trying to make translations work smooth for both automated CI pipelines and PMs/designers who don't live in Git, when translations are checked into the repo. Also going through my network, talking to devs and localization folks to understand what could be improved in their orgs for translations.

Working on a flight tracking tool that records the landing and takeoff actions of a local airfield to get insights in how they determine on which runway a takeoff or landing is assigned. Problem is that all the free aircraft api's don't register a landing or takeoff act and also not on which runway.

The airport in question has just one runway and is situated in a dense population area. Both sides of the runway are used (officially noted as two runways) for takeoff and landing causing noise complaints in the neighborhood. The airfield says it assigns a runway based on wind direction and speed, and when there is much traffic they relieve one of the two directions to prevent going over a threshold. My goals is to check if they follow their own rules and just to have a insight if my annoyance over why there are so many aircraft over my house and not on the other side is justified or not.

As a frontender this is quite challenging. I'm using Express with typescript to write the backend. Usually I get bored quite quickly because progress is not going fast enough, so I'm using a lot of AI to speed things up.

I'm checking for aircraft in a 5km circle every 30 seconds. If a aircraft is below and above x feet than I'm going to track it every 5 seconds. Between each entry I'm checking the coordinates and altitude to determine which runway (direction) is used and if it's taking off or landing. I'm also using another API to get weather data like wind speed and wind direction. Finally this is saved in a JSON file (for now) and loaded into the frontend to be displayed in a table.

I do have a working prototype, and removing a few bugs. At the moment it's checking the logs after a day of collecting to check for errors, fixing those errors and validating the fix the next day. When it's done I'm planning to open source it so that anyone can use it if needed.

https://micro-arcade.netlify.app/

I have been making a micro-arcade of one button games using a fun little library I found.

It is so fun to just have an idea and implement it in under an hour or two. It is a great creative outlet.

Give them a play if you have a second, they are very rough around the edges but are playable on mobile or browser.

https://micro-arcade.netlify.app/

Currently doing the finishing touches on a ww2 era surface grinder, closing out a new little design, and ramping my fitness up again. Next up is some duct work, some reverse engineering, and finishing my part of a paper.

I haven't had this much time off in over a decade and it's amazing. I've been hoping to get inspire for some outdoors or running related mechanical design/prototyping projects, but nothing yet.

Hey all, I am a noob at building my own things. Recently, I have started building my own web app, which collects AI related news worldwide. I also cluster them to identify trends within the AI economy. This was interesting to me as I do actively invest in stocks. The website also generates a newsletter, collects details related to new corporate deals announced, etc. It is collecting everything related to AI and the economy.

Now I feel lost, I don’t know where to go from here. I don’t even know if I am doing the right thing. What do you think? Is there any guidance or roast you can give? Here is the website https://www.racetoagi.org/

Here is the trends collection https://www.racetoagi.org/trends

Here is the deals graph https://www.racetoagi.org/deals

Finally, here is the newsletter https://www.racetoagi.org/research/newsletter

One terrifying piece of news I saw today https://www.racetoagi.org/news/2025-12-15-japanese-local-med...

https://github.com/baalimago/kinoview

An agentic media player, intended as home media server for.. uhh.. seasonal vacation videos with subtitles. I've experimented a lot with different "levels" of AI automation, starting from simple workflows, to more advanced ones, and now soon to fully agentic.

Pretty good practice project! All written in Go with minimal dependencies and an embedded vanillja-js frontend built into the binary (it's so small it's negligable)

Publishing everything local councils do in the UK at https://opencouncil.network - trying to help people feel like they know who and what they’re voting for next May.

It’s been incredibly rewarding to see people’s changing opinions of their local government

Still working on the Mint programming language (https://mint-lang.com/) with a 1.0 release in January :). I'm happy with the current feature set, so I'm just polishing and optimizing where I can and giving the documentation a throughout look.

I am working on Correctify's Design Studio, a feature that turns plain restaurant menu text into menu designs based on your choosen size, style and branding.

What makes it different from alternatives is that it’s content-first. Instead of dragging boxes around or fighting templates that don’t fit your menu, Design Studio designs around your text. For restaurant owners, that means significantly lower waiting times and costs.

Design Studio is still in private beta, but excited about where it’s going

https://correctify.com.cy/blog/posts/meet-design-studio-the-...

Two things currently:

1) TrickTrapper.

Backwards compatible verified phone calls. Android version is in testing with friends.

2) Katalib.

We have about 1600 books or so at home, there's no chance I'm going to scan ISBN codes of all of these. I've tried four times and got way too bored after the first 100-200. The solution? Take a photo of the bookshelf, send to Claude for text parsing and series information. Then some UI etc around that.

It's working, I just need to start testing it myself and a few friends have also asked for access.

Trying to rebuild my website (php mvc built a decade ago) using Django. I want to be able to update any page content, upload and display images, have multiple blog instances. I do a lot of django-cms by day, but it's too much for a small personal website, so I started to create a (tiny, foss) CMS based on Django, django-prose-editor for the content, and some new apps (for now, Page & Blog).

The site isn't even online, but for now I'm starting to think about the next steps (seo-related things to implement, generalize app functions to handle not only blog but other (hypothetical) apps as well, improve code quality and repo readability, separate apps from the website so anyone can add them to their django website if they want to). It's a lot of work for something no one will ever use, but I must at least try to make it clean and discoverable :)

Added a fifth project this month. Most likely very unwise...

1. probe.bike - tell stories with your bike rides. It allows you to aggregate your cycling trip into one datapoint. Will likely break this out to skiing over the break and rebrand slightly. Adding yearly cards as we speak!

2. flopper.io - I'm seeing traffic rise and rise for this and it's been a great way to translate my every-increasing understanding of AI Infrastructure architecture to a new project. It acts as a benchmark website for GPUs and systems (e.g. Nvidia NVL72.

3. llmstxt.studio - still feel like llms.txt as an idea make sense - so hedged that and but let's see. Got my first customer this month. B2B and need more features/marketing.

4. rides.bike - the oldest - a catalogue or well researched cycling destinations and information about destinations. Will be adding more very soon!

I created this simple stock management system. This was a good experience building an end to end product since I have been a front end developer all my life, building this has been an amazing experience.

https://stockflow-drab.vercel.app/

Here is the github URL : https://github.com/codingbbq/stockflow

Appreciate any feedback on the application or review on the code..

Thank you

I'm finally wrapping up a little webdav tool that's been on my todo list for years. It's just a simple tool to copy directories over webdav. I tried using Cadaver but I kept running into strange errors with it. And this one ties in with an unusual authentication setup. Might open source it, haven't decided yet.

Also dicking around with DMARC tools. Was unhappy with all the existing tools, want something simple I can run semi-locally for a bunch of low volume email domains. Haven't decided yet how that will turn out, still in the reading specs & tinkering stage.

My one-person project Zigpoll [https://www.zigpoll.com] I've cracked the eCommerce market (1M ARR as of a couple days ago) but want to spread out more broadly into other verticals (SaaS, Hotels, Restaurants, Home Services, etc...) to reduce sector risk. If anyone is cooking something up please reach out and I'll be happy to hook you up with the service for free. [jason@zigpoll.com]

Getting close to my last day at my current job, and I couldn't be more excited to build in public.

When I moved to Thailand last year, the language barrier hit me immediately. So I’m scratching my own itch and building https://thaicopilot.com/, It's designed to help you learn Thai in real situations. Still early, but moving fast.

https://github.com/Mockapapella/tenex

Tenex, a TUI for managing swarms of AI agents.

I noticed that as I'm using agents more and more my PRs are getting more ambitious (read: bigger diffs), and when I was reviewing them with agents I noticed that the first review wouldn't catch anything but the second would. This decreased my confidence in their capabilities, so I decided to make a tool to let me run 10 review agents at once, then aggregate their findings into a single agent to asses and address.

I was using Codex at the time, so Tenex is kind of a play on "10 Codex agents" and the "10x engineer" meme.

I've since added a lot of features and just today got to use it for the first time in a production system. Some rough edges for sure, but as I'm using it any time anything feels "off" or unintuitive I'm taking notes to improve it.

Fun fact, on my machine, while launching 50x Claude Code instances very nearly crashes it, I was able to launch 100x Codex instances no problem. I tried 500x but I ran into rate limits before they could all spawn :(

Working on The Password App (https://thepassword.app) - an AI-powered macOS desktop app that automatically rotates your passwords across websites.

The problem: most people have 100+ accounts with weak/reused passwords. Changing them manually is tedious, so nobody does it.

The solution: import a CSV from your existing password manager (1Password, LastPass, Bitwarden), select which accounts to update, and the app uses browser automation with Gemini 2.5 Flash to navigate to each site's password change page and update them in parallel. Exports a CSV with the new passwords to import back.

Key technical choices: - browser-use library for AI-driven browser automation (handles dynamic sites better than Selenium) - Local-only architecture: passwords never leave your machine, no cloud sync, everything stays in memory and is cleared after use - Electron + Python: React frontend with a Python agent for browser automation via stdio IPC - OpenRouter for LLM access (Gemini for navigation, Grok for validation)

Security was the most important and the hardest constraint. Passwords can't be logged, can't be sent to the LLM context, and can't persist on disk. Custom fork of browser-use to inject credentials via secure parameters invisible to the AI agent.

Currently at v0.38 with code signing and notarization for macOS. Working on improving success rates - the main challenges are 2FA requirements and anti-bot detection (Cloudflare, reCAPTCHA).

Would love feedback from anyone in the security/password management space.

Trying to make my Rust library `composable-indexes` more ergonomic. It is for indexing a collection on multiple dimensions in a type-safe and composable manner.

In other words, something safer & more concise than maintaining multiple HashMap's, but a lot less involved & simpler than an in-memory SQLite.

It's better explained by the example here: https://github.com/utdemir/composable-indexes/blob/3baa36762....

https://github.com/utdemir/composable-indexes

Some recent tools, finished/improved this year:

- db2qthelp — a DocBook book to QtHelp project converter (https://github.com/dkrajzew/db2qthelp)

- grebakker: a private backup tool (https://github.com/dkrajzew/grebakker)

- gresiblos: a tiny static site builder (https://github.com/dkrajzew/gresiblos)

Currently, I work on a Desktop GLSL shader editor. Looks fine so far...

A service that allows you to post generic agent/task workload and execute and observe it in the background. Sort of for long timelines. I just want to have background agents to monitor various aspects of my digital life and keep those healthy, eg check if I’m using all of the tax credits and leverage them to get the most after tax cash, or constantly monitor my network and alert me when something is off, or scan and evaluate my public contributions and remind to post something new once in a while. Just a tool to make sure I am on top of everything.

Using Go on the back, React for ui, sqlite, containers for async work, openai. Trying to keep it simple.

https://ackack.io Uptime monitoring for devs and SMBs.

Focusing on building out web app and then moving to the CLI and Terraform provider.

Feels like I'm working on a million things (between work, side contracts, and creative explorations). Recently a friend asked whether AI is helping or hurting my workflow.

And I realized I couldn't give a concrete answer. Lots of speculation, but I realized I didn't have hardly any real data. Inspired by Adam Grant's work on "rethinking", I'm _currently_ writing a tiny CLI to run self-experiments on my own productivity, auto-checking in / observing commits/code changes.

Goal at the end is to be able to test myself across different dimensions with "no AI", "moderate AI" (e.g. searching, inline assist), and "full AI" (agents, etc). https://github.com/wellwright-labs/pulse

Euclid: A cool minimalist flip clock webapp https://github.com/avinayak/euclid

Low Touch Advisor The dream: “click a button to get a senior engineer added to your slack.” It’s a side hustle for awesome engineers.

My first customer has me looking for e6+ or cloud architects to be paid advisors to review cloud migration RFCs. (No coding) Comp is $1k per RFC you review. There are at least 18 RFCs per month to be reviewed.

Here’s my site I scaffolded for this: https://www.lowtouchadvisor.com/

https://opensciencearchive.org

I’ve started building a domain-agnostic scientific data archive, inspired by the Protein Data Bank. It handles the deposition, validation, curation, storage, and searching of scientific data, with plugin interfaces for domain-specific components.

The goal is to accelerate AI-for-science efforts by making it easy for scientific organisations to spin-up professional-grade data infrastructure in a matter of days. “PDB-in-a-box”.

Working on a browser extension that let's you take notes right on youtube.

Chrome: https://chromewebstore.google.com/detail/video-notes/phgnkid...

Firefox: https://addons.mozilla.org/en-US/firefox/addon/video-notes-f...

Demo here: https://youtu.be/rOi7xQ8DLpo?si=M6pFoHqyrSGKuyIt

https://nyccoffeemap.com

React Native mobile app + React web app that shows all the coffee shops across New York City. The idea is that you can open it and the app instantly displays the closest coffee shop to you. It integrates with Google Maps reviews AI summaries for a lowdown on the coffee shop and vibe.

I've really enjoyed writing blog posts recently. Not only is it a great way to flex your writing muscles, but writing about a topic, unsurprisingly, helps you understand that topic better too. I've had great conversations with friends about the posts I've written as well.

And sort of in that same vein, I've been developing my own static site generator that I eventually want to move my blog to. It's almost certainly going to be a worse SSG than every alternative, but it'll be mine and that's worth something in itself.

Plus it's just been fun to make! I wrote some gnarly code to generate infinitely nestable layouts that I'm kind of proud of. It's the kind of code that's really cool but you can only code on a project for yourself, because if someone else had to debug it, they might say some pretty unkind things about you.

https://trypixie.com

I’ve been working on Pixie, a platform to employ and track your kids for real work; for families with a business, it helps reduce tax burden and fund a child’s Roth.

I’m actually an anesthesiologist with some 1099 income, built the platform myself because my kids help with my side projects, and have since onboarded CPAs who now offer it to their clients. It's been a fun journey!

A research robot for exploring AI/human/etc interactions. Someone put the wrong price on Thor for some reason and it arrives tomorrow.

https://hackernewsai.com/

Trying to grow this newsletter - a roundup of the most votted and commented AI links from HN. After 11 issues I am at 221 subs, most of them from Reddit posts (I post a short description of the top 5 links on several AI subreddits). Not sure how long this will work, I feel like I spam these subreddits.

I want to launch on Product Hunt soon and maybe add it to some newsletter directories, but I have low expectations.

I post here on HN a link to each issue after I send it, maybe that will get from traction one day.

Nothing on the scale of most the things mentioned here, but I'm trying to assemble the first version of my digital garden to publish online a bunch of notes I've collected over many years. I'm also trying to put together a workable system to catalogue and index hundreds of thousands of digital images scattered across multiple devices so I can deduplicate them and collate them effective. Digital Librarian is not a hat I ever thought I'd end up wearing, but I refuse to buy more 18Tb HDDs and still not have any means to locate pictures in a meaningful way.

https://bookspace.app I’m building a simple direct booking link for hospitality businesses that already have demand and want to avoid marketplace booking fees.

A hobby language called OAF (Oops All Functions). Everything is an argument of a parent function PROGRAM. It's very cursed but it's now fully competent as a general purpose language.

Working on Infralyst: https://infralyst.io

Self serve AWS cost savings for Terraform users. Connect AWS (read only role via a Terraform module), GitHub and Terraform state. Infralyst finds underused resources and opens a PR to downsize, gated by best practice checks so it doesn’t suggest sketchy changes.

Free: 3 downsizing PRs per workspace. Pro: $99/mo unlimited PRs. Looking for early users and blunt feedback from teams running AWS + Terraform.

If you try it and mention you came from HN, I’m happy to set you up with an early adopter discount.

Building Arivu: CLI/library that normalizes fetch/search across a bunch of sources (arXiv, PubMed, HN, GitHub, Reddit, YouTube transcripts, RSS, web pages…).

I use it as a context fetcher i.e grab an abstract/transcript/thread as clean text/JSON, pipe it into summaries or scripts.

Also runs as an MCP server (experimental), so tools like Claude Desktop or CLI assistants can call the connectors directly.

  arivu fetch hn:38500000
  arivu fetch PMID:12345678
  arivu fetch https://arxiv.org/abs/2301.07041

https://docs.gatana.ai/

Enterprise/Organization focused MCP gateway with support for sophisticated credentials management, integrates with OIDC/SAML, team and profiles support, external secret stores (AWS/GCP/Azure/Hashicrop Vault), using envelope encryption, and in-band-MCP authorization trigger for e.g. trying to use a tool which Gatana not yet has credentials for.

Ideal for Agent-2-Agent/dev teams/Github Copilot Agent (the one you assign issues)

Stack is k8s, NodeJS, React, Google KMS, hosted on GKE, with GKE Sandbox for local server isolation.

Working on promptfoo, an open-source (MIT) CLI and framework for eval-ing and red-teaming LLM apps. Think of it like pytest but for prompts - you define test cases, run evals against any model (OpenAI, Anthropic, local models, whatever), and catch regressions before they hit prod.

Currently building out support for multi-agent evals, better tracing, voice, and static code analysis for AI security use cases. So many fun sub-problems in this space - LLM testing is deceptively hard.

If you end up checking it out and pick up an issue, I'll happily send swag. We're also hiring if you want to work on this stuff full-time.

https://github.com/promptfoo/promptfoo

Today is the start of Langjam Gamejam, a 7-day hackathon to build a programming language and then make a game using it. I'm ideating on what I'll build.

https://news.ycombinator.com/item?id=46097671

CtrlAssist – an open source project to bring more accessible, collaborative gaming to Linux! Inspired by PC gaming sessions with my own family, where both young and old relish exploring rich stories with immersive worlds (like Witcher 3, RDR3, Hogwarts Legacy, etc) but find coordinated combat or movement control too challenging to play solo, CtrlAssist lets you combine multiple controllers into one virtual gamepad, much like assist features on dedicated game consoles.

https://crates.io/crates/ctrlassist

Whether your helping grandparents through tough boss fights, or co-oping with nieces and nephews to level age gaps, CtrlAssist aims to make PC gaming on Linux fun and accessible for everyone. While I’m certain similar utilities exist, I also just wanted a holiday hobby project to practice Rust development while scratching a personal itch.

Please give it a try, share your feedback in the relevant discussion categories, or check out the open issues if you’d like to contribute, help is always welcome!

- Developer Feedback and Rust Community Discussion

   - https://github.com/ruffsl/CtrlAssist/discussions/14  ;

   - https://github.com/ruffsl/CtrlAssist/discussions/15

I've been working on several internal tools that act like extensions for the django admin.

- https://github.com/yassi/dj-redis-panel - https://github.com/yassi/dj-cache-panel

This week I'm taking a break from my next project in this series (celery related) to try to participate in game jam related to programming language creation:

- https://itch.io/jam/langjamgamejam

I encourage others to participate I e

https://nthesis.ai/public/hn-working-on

A tool for searching, filtering and chatting with the "What are you working on?" posts. Also has a visual map (UMAP) that clusters similar things together. Useful if you want to find specific things or better understand themes.

I’m tinkering with a small TCO estimator for internal apps.

It compares different approaches and makes some assumptions explicit. Mostly a rough tool to sanity-check effort and tradeoffs.

https://tco.devtom.ca

I’m working on OpsOrch(https://www.opsorch.com/), an open-source orchestration layer that provides a single API across incidents, logs, metrics, tickets, messaging, and service metadata.

It sits on top of existing tools like PagerDuty, Jira, Prometheus, Elasticsearch, and Slack, and normalizes them into a shared schema. It doesn’t store operational data, it just brokers requests through pluggable adapters and returns unified structures.

The motivation came from incident response workflows that still require hopping across multiple vendor UIs and APIs with different auth models and query languages. Instead of another “single pane of glass,” this is meant to be a small, transparent glue layer.

On top of the core service, I’m also exposing everything via an MCP server so LLM agents can query incidents, metrics, and logs as typed tools without needing vendor-specific knowledge.

Currently open source, written mostly in Go and TypeScript. Still early, but usable with PagerDuty, Jira, Prometheus, Elasticsearch, Slack, and mock providers. Feedback from SREs and infra folks has been very helpful so far.

I’m speed-running a bunch of new hobbies to teach myself how to make a physical game (basically its a ping pong paddle that tracks how often you hit a ball — like a “keepy uppy” game with scorekeeping):

- Arduino dev and circuitry

- 3D printing

- PCB design

- Woodworking

Its all a lot of fun and IMO a lot more approachable than it has been thanks to the assist from LLMs.

As a means to learn about both WebAssembly and Rust, I started writing a WebAssembly binary decoder (i.e. a parser for `.wasm` files) from scratch.

Recently it hit v2.0 spec conformance. 3.0 is next on the roadmap. (I'm executing it against the upstream spec test suite.)

I don't plan to make it a highly-performant decoder for use in production environments, but rather one that can be used for educational purposes, easy to read and/or debugging issues with modules. That's why I decided not to offer a streaming API, and why I'll be focusing on things like good errors, good code docs etc.

https://github.com/agis/wadec

P.S. I'm new to the language so any feedback is more than welcome.

Been casually working on some AI projects lately. Open-sourced both: LLM Archive Downloader. Got paranoid one night about open-source models potentially disappearing (licensing changes, restrictions, who knows). So I built a script to download and archive them locally. One command, pick what you want — Llama, Mistral, DeepSeek, Whisper, the works. ~200GB total or grab the essentials (~40GB). Now they're sitting on my hard drive. Offline forever.

→ github.com/Ashwinsuriya/llm-archive-downloader

YouTube Shorts Generator Converts long YouTube videos into Shorts automatically. Whisper handles transcription, LLaVA analyzes frames to find interesting moments, Mistral picks clips and writes captions. Everything runs locally in a parallel pipeline. No APIs, no subscriptions. → https://github.com/Ashwinsuriya/yt-shorts-generator Nothing fancy.

Just scratching my own itch and sharing in case anyone finds them useful.

Just wrapped up the latest build of Bedtime Hero - an application (React-Native, ios, android) for parents to build/generate bed time stories with their little one. Allows the parent to use pre-sets or set their own and then generate a story (complete with images).

This was a satisfying project mostly because I dog-food it every night with my little one.

Hey all, I am a noob at building my own things. Recently, I have started building my own web app, which collects AI-related news worldwide. I also cluster them to identify trends within the AI economy. This was interesting to me as I do actively invest in stocks. The website also generates a newsletter, collects details related to new corporate deals announced, etc. It is collecting everything related to AI and the economy.

Now I feel lost, I don’t know where to go from here. I don’t even know if I am doing the right thing. What do you think? Is there any guidance or roast you can give? Here is the website https://www.racetoagi.org/

Here is the trends collection https://www.racetoagi.org/trends

Here is the deals graph https://www.racetoagi.org/deals

Finally, here is the newsletter https://www.racetoagi.org/research/newsletter

Working on https://canine.sh, an open source, self hosted PaaS for Kubernetes.

A big part of this was inspired by the last startup I worked at. In an effort to not deal with complexities of Kubernetes, we ended up on Heroku and was charged exorbitant amounts of money. One year spending close to 400k on Heroku alone, for what should’ve been 10-15k in cloud costs.

I think a big part of this is just making Kubernetes more friendly and easier to use for a small / midsized team of developers.

The goal is to make it easy enough for even a single developer to feel comfortable with, while also being powerful enough to be able to support a small team

A recipe site for my favorite cooking youtube channels

https://recipes.justshare.io/

Last night I decided to take a break from the digital world and started on making a guitar. Leaning towards something in the style of Lacôte[0] but not sure, ordered a book on Vicente Arias[1] and might order a couple other plans to consider. Have a fair amount of stock prep to do before I have to commit to a design and will probably need to order a few sticks of wood as well, so probably have ~two weeks to make up my mind.

[0] https://upload.wikimedia.org/wikipedia/commons/a/a8/Guitar_M...

[1] https://issuu.com/orfeomagazine/docs/arias_livre

That last link is almost the entire book, have not looked through the digital version yet but on a quick look I think it is everything but the portfolio of his work.

https://hn-comments.netlify.app/

I got tired of the lack of ergonomics around HN comments, and built my own navigator/viewer.

https://codeboards.io

I built Codeboards, a developer portfolio that updates itself automatically from your GitHub, StackOverflow, LinkedIn, and more. Most dev portfolios are outdated, manual, and painful to maintain. GitHub alone doesn’t show who you are. LinkedIn is noise. Personal websites die after 6 months.

I’m trying to build 1 decent iOS mobile app per month.

Most recently released one was My Vocab Quest[1], a vocab mastery app with lots of word packs. It uses some gamification mechanics to make sure the user puts in the reps.

Current apps in the hopper are centered around:

(1) Recovery from cosmetic surgery. There are several balls to juggle for days, weeks, and months after a surgery. The app helps the user follow surgeon instructions, promoting physical and mental recovery, as well as medical and dietary changes. Makes use of phone features including contacts, calendar events, notifications. I’m learning to build an App Clip for it and hope to partner with some surgeons to get it promoted in their offices.

(2) Assisting older Americans to be more independent for a little longer (a parent of mine has early stage dementia). Helping the user maintain a regular schedule, take their medications on time.

(3) A dating ideas / meal ideas and agreement app. It helps increase creativity for date ideas, learns from how predictable you are, and facilitates agreement between the users.

[1] https://apps.apple.com/us/app/my-vocab-quest/id6748546703

8th anniversary release of my app: Video Hub App - browse and organize your local video collection in style.

https://videohubapp.com/ & https://github.com/whyboris/Video-Hub-App (MIT open source)

https://nix-ci.com

What if CI didn't have to involve any configuration, could run in 30sec instead of 30min, and would be reproducible locally?

https://nemorize.com

Reinforced learning platform

Working towards a handheld computer with a physical keyboard. Lots of examples out there (Hackberry Pi, Beepy, etc) but wanted to try my hand at it.

Along the way I found most of these use salvaged BlackBerry keyboards which are only going to become harder to find, so also on a bit of a side quest to build a thumb-sized keyboard from scratch. Got me into laying out and prototyping my first PCBs and learning about how these things are made - lots of fun so far!

Something cool I learned from tearing apart a BB keyboard: the satisfying “click” is just a tiny metal dome that pops and completes the circuit when pressed. Not news to anyone familiar with electronics manufacturing, but it was a cool thing to “discover.”

I'm working on a collection of stackable interactive slides for teaching numerical methods and operational research.

https://okaleniuk.codeberg.page/blackboard/

The idea here is, one can pick the slides they want and arrange them into a sequence right in the URL. This way, there is no registration, no user data collection, no persistent state even. You just pick the slides, teach your material, and move on.

It's very raw, I still want to add a convenient sequence constructor, a "blank" slide so you could display your own content in it, and a similar quiz page. But I already used some of the slides for teaching, students seem to like them.

Hopefully, I'll have the rest done by the beginning of the spring semester.

I've been working on a personal project, from absolute zero to marketing, and it's been a great journey.

Mastering interviews and the most common questions, practicing all the questions to ace them, of course with AI and a lot of language chaining. Real time feedback, complete analysis of interview too. https://intermock.com

I am not really working on anything big right now, mostly just improving what I wrote, in particular documentation-wise.

However had, on my todo list ... a few things that are important to me are there.

One is to create some kind of pseudo-language that can model biological cells, from A to Z. I am having something similar to erlang in mind (to some extent). Now, this is nothing new - modeling is quite old, bioinformatics is old, but I have a few ideas that are somewhat novel IMO (e. g. really following erlang here, just adapted to biological systems).

Then I have a few smaller ideas. One is to finish a webframework where everything is really an object at all times. Meaning, I can work with objects when describing a webpage, from A to Z. HTML tags are objects too. I don't typically use them directly, though, but more in a meta-layout, e. g. I want to describe a webpage, but on a higher level, and also push that down into a .pdf file then seamlessly. My goal here is to be able to work with objects everywhere, not just for a single webpage but for all local and remote webpages, a bit similar to Alan Kay's old ideas.

I have a couple more ideas (one is the widgets project where I want to describe a GUI only once and then have it work in as many variants and languages as possible), but realistically I also focus on the smaller things to do as they are much easier to solve. Right now it is more important to me to finish as much as possible before the end of the year, so prioritising on smaller things makes more sense.

I'm completely rebuilding my storm chasing game "Tornado: Research and Rescue"

https://youtu.be/P_weRNiCpmQ?si=EajGMlN3Qrej7OCr

I’m working on a community-driven website for finding local deals, especially happy hours, in Seattle, Washington: https://seattlebardeals.com/. I launched last week on Seattle Reddit and got a lot of positive response. The long-term goal would be to have something like this in every city, so when people are new or are just visiting they can find fun things to do on a budget

https://github.com/arcuru/eidetica

Eidetica - a decentralized database built in Rust, intended for local-first apps. It's still unstable but I'm progressing relatively rapidly. In the past ~month I have:

- Flown to SF to attend a conference in this niche: https://syncconf.dev/

- Added password based, transparent, end-to-end encryption

- Improved my custom CRDTs

- Added an index to store configs and metadata

- Built support for using sqlite + postgres for Eideticas backend (not pushed yet)

Once I finish the backend work I'll hopefully take a bit of a break though. I'm supposed to be retired.

I finished the library providing all features of a multisig file signing scheme. With that it was easy to develop a cli tool. And now I'm looking at developing the server component. Looking forward to share a complete solution! Git backed, decentralized, no account creation needed (auth by key pair), open source and self hostable!

Current development at https://github.com/asfaload/asfasign/

Puzzarium (https://puzzarium.com), a platform for MMO-style logic puzzle games. I justed launched Every 5x6 Nonogram (sequel to Every 5x5), a collaborative game with the goal to solve every 5x6 nonogram puzzle board.

https://www.youtube.com/@dodo-oss/videos (no homepage yet)

I've building PaaS focused on development environments. I think there are so many things to be improved all throughout the development process:

1. starting from creating new ones

2. forking existing one (like one would do with the git repo) to experiment with new ideas or debug the issue in an isolated environment

3. being config defined and reproducible

4. hybrid by default - run as much or as little one desires on their personal machine while keeping rest of the env (db, storage, ...) in the cloud

5. easy to share: expose services (HTTP/TCP/UDP) on public or private networks

6. have any number of AI agents with specific goals be part of the dev env

https://github.com/continusec/htvend/

htvend is a tool to help you capture any internet dependencies needed in order to perform a task.

It builds a manifest of internet assets needed, which you can check-in with your project.

The idea being that this serves as an upstream package lock file for any asset type, and that you can re-use this to rebuild your application if the upstream assets are removed, or if you are without internet connectivity.

Has an experimental GitHub action to integrate within your GitHub build, archiving assets to S3.

Working on my language learning app (Python, tkinter) "Xiaolong Dictionary"[0]

It is supposed to implement all kinds of features, that I usually miss in vocabulary learning applications, such as a very powerful search function, and the ability to add arbitrary tags, a table of words, and learning progress statistics (not yet implemented).

It has minimalistic dependencies. Currently the only non-development dependency it has is jsonschema.

I keep the configuration of the application in a JSON file. This configuration already allows to configure many things, like for example the various learn levels, and what their meaning in terms of the spaced repetition system is, which attributes of a word will be revealed in what order, when practicing, what attributes to show in the columns of the vocabulary table, and what font to use for the big character display widget (useful for languages like Chinese).

It's AGPL, so feel free to fork, but adhere to the license.

[0]: https://codeberg.org/ZelphirKaltstahl/tkapp

I've been spending weekends thinking about authorization for AI agents, specifically delegation.

The failure mode I keep hitting: once you give an agent tools, it gets ambient authority over all of them. There's no clean way to say "for this task, read-only on the reports table" or "spin up no more than 3 VMs." When the agent spawns sub-agents mid-execution, they inherit full access by default.

IAM doesn't help much. Authority stays tied to the agent's identity even as intent shifts during execution.

I'm exploring a capability-based model instead: authority is explicit, task-scoped, and attenuating. Closest to Macaroons/Biscuit, but adapted for workflows where delegation happens dynamically mid-task.

Early prototype (Rust core, Python SDK, LangChain integration), still thinking it through. Notes here: https://niyikiza.com/posts/capability-delegation/

AI Copilot for LibreOffice Writer: https://librethinker.com/

I've spent several years solo-developing an ad-free website with over 50 different solitaire/puzzle games:

https://inSolitaire.com

I've rewritten this project (almost) completely three times and now doing it for the fourth time, with tests and best practices.

I would be incredibly grateful for any feedback what I'm missing with it.

So far it has been great fun and I have learnt an incredible range of things!

https://ideavo.tripivo.co.in

I made a platform for innovators, founders, developers to validate their idea against real users (not AI).

My purpose to build this platform is two-pronged–first to solve the "Power Law", in simple terms, where platforms such as Instagram, Reddit, YouTube, TikTok, etc. only put forward the popular content (most upvoted, liked, viewed, trending, etc.) and people who are posting regularly are still left behind fighting for some interactions.

Second, to provide a platform for people, innovators such as myself, who keep asking the question "is this worth working on? worth spending time and money on". There are subreddits with hundreds of thousands of followers and Redditors and many of them are still not getting the visibility they need to start.

I remember that I had a lot of ideas throughout high school but I wasn't able to get real answers and validation from people so I dropped it. So specially for those people who need a little bit more visibility.

So trying to solve that.

I've been working on a weightlifting logging app for the apple watch. I haven't submitted it yet since I am still beta testing, but I'm mostly feature complete.

It's intended to be anti-memetic, and anti-guilt trip. Just put it on your watch, install a program (open format) and you never need the phone itself. Your workout is a holiday from your phone.

The data can be exported if you want to use it elsewhere.

I originally made it for ROCKNIX but as there was no way to share the app I paid the Apple tax :/

https://github.com/jmahmood/RED-STAR-WEIGHTLIFTING

Several years ago I wrote an internal tool named Fogbeam Universal Competitive Inteligence Tool (eg FUCIT). It was up and running and doing it's job for a while, then a lot of stuff happened and it kinda fell into disrepair. It's a Grails app and the original Grails version was something like 2.2.3 and I think it was running on Java 1.6 or something along those lines.

Anyway, for a lot of reasons that don't matter now, the time has come to rebuilt | reinvent | reinvigorate this thing. So for the last week, I've just been working on updating dependencies, fixing the resultant breakages, and also fixing miscellaneous bugs that had never been fixed (or possibly even noticed) before.

As of today I have most of the base functionality up and working again. I just got all the Quartz scheduling stuff set back up and now I'm testing the scheduled job that fetches data from RSS feeds and creates associated records based on the contents of those items.

Up next: test|fix some functionality around defining "semantic assertions" about entities in the system (using Apache Jena) and then I'll at least be back where I was.

After that, I have some UI improvements to make (the UI now is basic GSP pages with Bootstrap and jQuery), and then some GenAI integration stuff. Beyond that: who knows?

Besides that...

Ref this thread: https://news.ycombinator.com/item?id=46252283

I did pick up Volume 1 of "The Handbook of Artificial Intelligence" earlier this afternoon and read about 25 pages. I've also been working my way through "Parallel Distributed Processing - Volume 2" and "Principles of Semantic Networks" for the past few weeks, so continuing to grind on both of those as well.

Working on FileMinutes - a file search app for macOS. There are tons of apps in this space, it focuses on practical use-cases and simplicity.

https://www.fileminutes.com

https://www.airposture.pro

an iOS app that unlocks the hidden sensors in your AirPods, turning them into a real-time AI posture coach for work and workouts on iOS.

https://paydai.in We are building agentic solution to fine tune your resume that fit the job requirements. Fine tuning helps to full the gaps you have and helps to standout

I’m working on a small browser extension called Instant Preview.

https://chromewebstore.google.com/detail/majhgbekihmliceijip...

It lets you open links in a side panel, so you can quickly look at a page without leaving what you’re reading. I built it because I tend to open too many tabs when reading docs or search results.

It supports a few simple triggers. My favorite one is long-click: you click and hold a link, and the preview opens in the side panel.

Chrome recently added Split View that you open from the context menu. It works, but for quick checks it feels a bit heavy. You have to right-click, move the mouse, and pick an option.

With long-click there’s no menu. For me it feels faster, more intentional, and better when scanning lots of links.

Most of the work lately is about polishing these interactions and dealing with browser edge cases.

I'm experimenting to see if frontier LLMs can do practical CAD modeling. I'm starting with a single task: designing a wall mount for my bike pump in OpenSCAD or CadQuery (two code-based CAD systems).

None of the frontier LLMs (Gemini, ChatGPT, Claude) produce usable designs when just prompted with some photos of the pump and a written description of the mount. I'm now building a simulator in Mujoco that the LLMs can use to test and iterate on their designs to see if they can do better in this setting.

I'm hoping to make an interesting blog post of it and maybe end up with a usable wall mount design.

Working on turning individual disparate services into a unified zero-trust overlay network (what we're calling a Synthetic Environment™) where mocks and real services can be integrated or work seamlessly together, accessible through traditional networking or exposed public tunnels.

This is a developers tool, that can be used during development to seamlessly integrate mocks and changes into existing systems. Or easily expose internal work through a public tunnel. Or if been in an position where its hard to push to staging, pre-prod or other environments because of many competing constraints, then this product may help.

Currently working on my own education by learning C from Antirez's C course on YouTube.

I've been working as an ERP developer for a couple years now and the job is so dull and boring that I'm already starting to feel stagnant. So, I am learning more advanced things now in order to: 1. Advance my career, and 2. Maybe code some linux tool (for personal use only, for now!) and stop looking at enterprise code.

I'm building https://aero.zip, an E2E encrypted, resumable file transfer tool (think WeTransfer but encrypted and not P2P). I just posted it to Show HN:

https://news.ycombinator.com/item?id=46262540

A few technical details I enjoyed working on:

* Streaming ZIP: To allow downloading multiple files as a single archive without buffering, I implemented a custom streaming ZIP64 archiver. A Service Worker intercepts the request, fetches encrypted chunks, decrypts them, and constructs the ZIP stream on the fly in the browser.

* OPAQUE auth: I used the OPAQUE protocol (via serenity-kit) for the password-authenticated key exchange. It ensures the server never learns the password and protects weak passwords against offline attacks if the DB leaks.

* Passkey PRF auth: If your passkey provider supports PRF (like iCloud Keychain or Windows Hello), the app derives the data encryption key directly from the passkey, allowing a login flow that doesn't require entering a master password.

A Civil 3D plugin (Genabler) that will include all the network catalogs and collate the Civil 3D styles for civil engineers to use. There are some out-of-the-box catalogs and styles shipped with the default installation, but they are quite limited and fairly well hidden—which is not surprising, given that Civil 3D is a huge beast. As a result, they are not commonly used. When people think about Civil 3D, they often assume it requires BIM modelers (in a sense, just glorified drafters) to create all the necessary catalogs and styles, and to assist with their use.

My Civil 3D plugin will:

1. Make standard, market-compliant catalogs and polished styles available to engineers at large. Think of it as the WordPress theme provider equivalent.

2. Make the entire process easy and painless through the plugin, with prominent buttons for quick access.

If the plugin is done well, there will be less need for BIM modelers, since for a fee, engineers could simply purchase catalogs and styles that are so easy to use they require no technical training.

As a side benefit, I also get to explore how LLMs can help me write code. It has been a while since I last updated my AI usage policy [0], and I look forward to revisiting it.

[0]: https://civilwhiz.com/my-ai-usage-policy/

I’m building an open-source Electron desktop app for managing Claude Code, allowing users to configure various settings on user/project level, setup MCP servers, subagents, skills, see usage metrics and more https://antonbelev.github.io/claude-owl/

Working on https://ottex.ai/ - BYOK alternative to Wispr Flow and Raycast AI shortcuts.

I love global voice-to-text transcription (especially when working with Claude Code or Cursor) and simple AI shortcuts like "Fix Grammar" and "Translate to {Language}".

I realized I was spending around €35/mo (€420 a year) on two apps for AI features that cost just pennies to run.

So I built Ottex - a native macOS app with a tiny footprint. Add your OpenRouter API key and get solid voice-to-text using Gemini 2.5 Flash, plus any OpenRouter model for AI shortcuts.

Mostly been working on tier6 [0], which is "like" zerotier but over the sanctum protocol and fully open source (ISC licensed).

Getting ready to release a 1.0.0 of sanctum [1], after almost a year of internal testing, dogfooding and talking about it at security conferences.

We've also setup conclave [2] as an official release site for the projects tied to sanctum such as tier6, or the library implementation of the protocol etc.

[0] https://github.com/jorisvink/tier6

[1] https://sanctorum.se

[2] https://conclave.se

I am working on Grog, the “grug-brained” alternative to Bazel. A mono-repo build tool where all you do is provide your build commands and interdependencies and the Grog will run everything in parallel with aggressive caching.

https://grog.build/why-grog/

I'm trying to recreate https://viewsourcecode.org/snaptoken/kilo/ but in Zig, will probably have to face shit metric ton of hate after finishing it due to probably some mistakes and sharing them online in form of a guide, but I'm doing it to learn myself, hope that project will improve by people posting issues or simply forking the project when I will finish it.

I'm working on a meta framework for building "full-stack" libraries. I.e. libraries that bundle frontend hooks, backend routes, and a database schema into a single package.

This allows library authors to do more, like defining webhook handlers and (simple) database operations. The idea is to move complexity from the library user to the author, making (API) integrations easier.

I think libraries being able to write to your database is a pretty powerful concept, and can enable a number of interesting use cases.

https://github.com/rejot-dev/fragno

Still experimenting with data productivity tooling that doesn't rely on YAML. Been refocused on CLI tooling as a good interface for agentic use recently since Claude Code has gotten so good. Need to do some empirical evaluation on MCP/CLI success rates.

https://trilogydata.dev/

https://PostalAgent.com – Send personalized postcards online.

Upload a CSV or circle neighborhoods on Google Maps to build your address list (consumers or businesses). Printing and postage included in one price.

In the last 30 days I've added an API plus integrations for Pipedrive, Zoho, and Follow Up Boss. If anyone wants to help test these new integrations, I'll set you up on a special plan and let you send mail at my cost (roughly the price of a stamp).

Right now I am working on fixing my PC because it is randomly restarting out of the blue during a video call, or during some coding or when it is left unattended. Highly annoying. Right now I basically ruled out anything but the ram and mobo which would be very costly to fix because of Open AI shenanigans.

http://mikeinnes.io/posts/advent-2025/

I've been working through advent of code using my own little compiler/language. It's in such an early state that some creative problem solving is required, not to mention the compiler bugs! But I'm very pleased to have it running interactively on my blog like this – I want to work towards some bigger notebooks in the style of explorable explanations.

We’re building the Browserbase for mobile - Android & iOS at agentic scale with no concurrency limits.

We run them on bare metal without VM brittleness, fully GPU-accelerated with WebRTC streaming using hardware encoder. As good as it gets and it’s amazed every single person who tried it.

Still behind waitlist, give me a heads up at hello@limrun.com to try it out.

https://lim.run

I am working for a while on a command line game about spacepirates playing basketball across the galaxy. The game is a basketball managerial game with some pirate-y stuff. It's a P2P game with no central server, built on top of libp2p.

It runs as a terminal application, meaning that you just need to run it from your terminal, but you can try the game over ssh without installing: `ssh frittura.org -p 3788`

downloads: https://rebels.frittura.org/ repo: https://github.com/ricott1/rebels-in-the-sky

Volatility Regime Prediction via Causal Discovery in Option Markets - https://github.com/philippdubach/vol-regime-prediction/blob/...

Volatility regime models (Markov-switching GARCH, regime-switching stochastic volatility) are ubiquitous in finance. However, they share a fundamental limitation: regimes are identified ex post from return dynamics, providing no predictive power for regime transitions. The standard approach fits a Hidden Markov Model to returns, labels high and low volatility states, and estimates state transition probabilities that are essentially unconditional averages. This matters because the economic value of volatility timing depends entirely on predicting regime changes before they occur. A model that identifies regimes only after observing the returns is useless for trading volatility.

Existing research documents regime-dependent behavior but does not identify causal drivers of regime transitions. The papers on volatility forecasting factors, variance risk premium dynamics, and market instability from option flows dance around this question without directly addressing it. The recent work on causal ML in finance (double machine learning, causal forests) has focused primarily on equity return prediction rather than volatility states. The connection between options market variables and subsequent volatility regime transitions has not been rigorously established through causal methods.

We develop a causal framework for volatility regime prediction using option-implied variables as potential causes of regime transitions. The key insight is that options markets are forward-looking, so information embedded in the implied volatility surface, put-call ratios, option order flow, and term structure slopes may causally influence future realized volatility regimes rather than merely correlate with them.

Currently building a robust dataset.

Perhaps a bit off-base, but...I'm writing another novel! It's the long-awaited sequel to this (post-apocalyptic sci-fi if you're curious): https://www.amazon.com/Viscount-2213-Post-Apocalyptic-Surviv...

I've had the idea sitting in my notes for years now. It waited patiently until I could get back to it.

https://termcast.app

A Raycast porting to the terminal. It will let you run Raycast extensions as TUI apps. Powered by opentui

I'm working on https://github.com/dinoki-ai/osaurus, Native macOS LLM server with MCP support. Looking for more feedback!

Working on my app https://apps.apple.com/us/app/mintflow-netstack/id6742394218

As an engineer working on networking and fiddle with various networking OS on router and switch, I finally port my favorite fd.io vpp to darwin platform and built a app to management multiple VPN/Proxy in one profile.

Also in this project I start writing some rust code with many years experience in C but rust's memory and high performance really impressed me a lot.

https://github.com/werdl/qforj

Open-source theatre tech cueing software (I don't want to use MacOS to run QLabs)

This week I vibe coded an golem-forge (https://github.com/zby/golem-forge) - exploration of prompting as programming. Since then I found https://github.com/badlogic/pi-mono and https://github.com/johnlindquist/mdflow and I think I'll rather use these existing tools to explore my idea. But I think it might be still interesting project because it is entirely vibe-coded - I don't even know Typescript (I know some Javascript from before React - but none of the new stuff). I did not look into the Typescript code at all - only at what the LLM presented to me when editing it and the docs. At some point I discovered that when I tried to have a core logic and two UI packages the LLM put only types in the core package - so I had drive a hard refactoring - but it worked.

I haven't yet tried this very extensively - but another profound change in programming that this showed me is that it is now very easy to borrow parts of Open Source libraries. It used to be that you could only base your work on a library - borrowing parts of projects that were not designed to be shared (used as libraries) was prohibitive - but with llms it is entirely possible to say: "now please borrow the UI ideas from project X" and it does that. Maybe you need to add some planning.

The project is about 27kloc now.

Nonoverse: an iOS logic puzzle game (nonograms!), I’m working on adding a new batch of levels. I’m considering a garden theme for extra cosy vibes, but I’m still in the planning stage and drawing assets right now (in inkscape, no AI).

https://lab174.com/nonoverse

Also PolyGen, an app for “low poly” wallpapers - I’ve sent an update with bug fixes for latest devices and iOS versions; it’s currently being reviewed, when you read this it might be live.

https://lab174.com/polygen

I'm working on https://wireplug.org: A simple, free, and open source connectivity coordinator for WireGuard. Basically a way to keep WireGuard tunnels connected while moving between different access points. It handles (basic) NAT traversal and works with the in-kernel WireGuard driver on Linux and OpenBSD.

You can find the technical details at https://wireplug.org

I'm trying to make a neural audio codec using a variety of misguided methods. One I am using ESNs wrong spreading leak rates in a logarithmic fashion acting like a digital cochlea. The other is trying to do the same with a complex mass-spring-damper system to simulate the various hairs of the cochlea as well. Both approaches make super interesting visuals and appear to cluster reasonably well, but I am still learning about RVQ and audio loss (involves GANs and spectral loss). I kinda wanna beat SNAC if I can.

Started working on an application to make it easy to see what parcels in NYC are upzoned with the City of Yes[1] changes that were passed last year.

I started off trying to make it a service to help people who are interested in ADU's get connected with architects/ contractors but spent a lot of time working on the interactive map to explore related ideas. The site is here buildbound.xyz and map here buildbound.xyz/map. Right now for example, it's very hard to tell if your site qualifies for the TOD upzoning portion of the City of Yes so maybe there is room to crunch those kind of numbers and provide it as a public service.

Trying to decide to keep going down the ADU route in NYC, even though the market is really early here, expand to NY State/ California where the ADU market is a bit further along or keep doubling down on making the best interactive zoning/ land use map in NYC and see if there is any product market fit to be found.

[1]https://www.nyc.gov/content/planning/pages/our-work/plans/ci...

Currently polishing my game, it's a 3D troll platformer. I published the initial demo on Steam last week: https://store.steampowered.com/app/4224780/Reflex_Run/

I am using a very different tech stack for it. It is written in Clojure.

https://github.com/AvitalTamir/termsheet

termsheet - a Google Sheets client for the terminal

I’ve been working on https://github.com/coro-sh/coro, which is an auth management platform for NATS.

The goal is basically to be a self hosted, open source alternative to Synadia Cloud’s BYON feature.

The whole project is shipped as a single Go binary with an embedded UI developed with Svelte. Has been a lot of fun to work on!

I was screwing around with gemini-cli and vibe-coded (or vibe-engineered?) a git extension to turn commit history into a pandas dataframe.

Curious if anyone would find this useful: https://github.com/rbagchi/git-dataframe-tools

Building https://floxtop.com, a native Mac app that organizes your files.

It looks inside each file to see what it’s about, then moves it to the right folder for you.

Everything happens on your Mac, so nothing leaves your computer. No clouds, no servers.

It works in 50 languages (including English, German, French, Spanish, Swedish) and with images (OCR and object recognition), PDFs, Microsoft Office, ePubs, text, Markdown, and many other file types.

If you have messy folders anywhere on your Mac, Floxtop can help.

A bingo app but regulation has been painful to say the least

I'd like to try crypto, which coin/chain/wallet is the most used? USDT on TRX? Binance?

Any advice is welcome as this industry is definitely not easy to enter

I did (with the help of GPT) a simple script to deploy my Django+Celery projects to DigitalOcean. I was a bit afraid of that in the past, but now it's just a script that, after configuring a few variables (IP, etc), runs smoothly and gives me a perfectly deploy for a side project on a DO droplet. And also I can run again to just deploy a new version.

For most people this is silly but I am super happy that it works.

I’m working on a modern transactional email API platform. Developers can bring their own AWS SES keys and freely use their own domains for sending emails.

I’m building it on Cloudflare Workers with advanced tracking, modern templates, and advanced webhook integration. Developers can also configure and schedule advanced workflows for their specific needs

The users can review their usage and performance using an intuitive dashboard.

Email is a crowded space and this is my first attempt at doing something indie at this scale. Wish me luck!

I built a universal live speech translating app.

I’ve been playing around with the Whisper models for a few years now. Last year I had an idea about how to run Whisper Large v3 in real time. That idea became ScribeAI.

Because the quality of transcripts was so high, much higher than I could get with Parakeet, I started to think about how it would serve as a good input for live translation. I played around with this and was surprised by how good the results is, I’ve used it to follow along political speech’s from foreign leaders and other content I’d have just never been able to consume before. You can translate by bringing your own LLM service API key or using the inbuilt Apple Translate models (for a completely offline experience).

https://apps.apple.com/gb/app/scribeai-transcribe-speech/id6...

My biggest project is still Materia[0], a tool for deploying applications with Podman Quadlets. This month I presented it to the Podman User Group's community meeting, which was pretty exciting since I've never presented in a community setting like that before. Otherwise I've been trying to focus on bugfixes, minor feature additions, and working with user feedback so it's not just me fixing my own problems :) . The latter is really fun since I've already run into someone using it in a way that's very different than how I'd imagine it.

Not coding related, I've been on what I've been calling "The Grand Project" for a bit over a year now where I listen to every single album I own (around 855 albums/singles/eps/etc. As of this moment I'm at 828) at least once. It's been a real trip essentially going through my whole life musically and I'm hoping to write a blog post somewhere about it.

[0] Project site: https://primamateria.systems/ Source Code: https://github.com/stryan/materia

https://sorso.app/

A fresh PWA to log / improve your coffee brewing process. We use it to see what we are all drinking, find new coffees, explore new cafes, and understand what we like / don’t like.

It’s primarily used by our group of friends, so if you see a rough edge somewhere please reach out!

Building https://lenzy.ai - helping products built around chat with AI (think Lovable or Cursor) reduce churn and prioritize product improvements by analyzing their user's chats.

I started about 2 months ago, found 2 early adopters and focusing on making them really happy.

Building an app that scans file systems prior to being migrated into M365. Looks for common governance issues and file and folder trees that won’t play nice in SharePoint. Not a migration tool as such, just something to scratch a consultancy itch. Python and Tkinter for now until I hit something that requires more complexity. Also a command line version that I’ll use more often. This probably could have been a PowerShell script but this is more fun.

I wrote a Telegram bot for video/image translation, and also Firefox/Chrome addons to help translate web content with smart content extraction and non-breaking layouts.

Check it out at: https://addons.subly.xyz & https://subly.xyz

The Firefox addon/Chrome extension is free, but you need your own OpenRouter/Gemini API key. The cost of web translation is really low, you can translate an article for ~$0.01 with really good quality. (You can try at https://addons.mozilla.org/en-US/firefox/addon/subly-xyz/)

I built it because I use Firefox the most and it seemed like no translate addon was good or simple enough. Chrome translate kinda works, but the quality is so low; it usually doesn't understand the article context.

https://chorebound.com

Working on Chorebound - an RPG-style chore/habit app. You do real-world chores, they become quests, you fight monsters, get loot drops, earn XP/gold, and level up. Can be solo or co-op with friends/family.

If you’ve used Habitica and bounced off, this is meant to be more lightweight, simplified, and focused on closer-knit co-op rather than public guilds.

Releasing in the next few weeks.

https://github.com/smj-edison/zicl

Porting/reimplementing a Tcl interpreter from C to Zig, based on the design of Jimtcl. This is one of those sub-projects that started due to another project (folk.computer in this case). The biggest difference is thread-safe value sharing, and (soon to be) lexical variable capture.

But why? Right now folk.computer has about a 20% overhead of serializing and deserializing values as they get sent between threads, and it's also meant we can't sent large amounts of data around. I previously attempted to make the Jimtcl interpreter thread-safe, but it ended up being slower than the status quo. So, I started hacking on a new interpreter.

Commands evaluate, basic object operations are in place, but there's still a ton of work to do in order to implement core commands. It may even be good enough to swap in some day!

A side project for my side project: I built my own static site generator with React islands architecture and MDX support, using Bun. (Build your site from .mdx files, output only html+css, progressively hydrate the client with React only as needed).

I wrote about it here: https://pcmaffey.com/custom-ssg/

Forkable template: https://github.com/pcmaffey/bun-ssg

Currently working on Klugli - Educational app for German primary school kids (Grades 1-4).

Parents set up accounts, kids log in with simple codes and work through curriculum-aligned Math and German exercises. Built with Elixir/Phoenix/Ash and LiveView.

The hard part isn't the tech - it's creating content that actually maps to the German school curriculum rather than generic "educational" fluff. Currently grinding through grade 2 math topics.

https://klugli.de

The stack has grown and almost shrunk again.

* The immediate-mode "every tick I ask you for a VDOM based on the user-defined state" TUI framework has all the fundamental features, I think; writing docs and expanding the library of components it ships with. https://github.com/Smaug123/WoofWare.Zoomies

* Decided I needed a nice text display widget, so got side-tracked into implementing the Knuth-Plass paragraph layout algorithm; it currently functions but is buggy. https://github.com/Smaug123/WoofWare.KnuthPlass

* Finally starting to put proper effort into the LLM integrations into my workflows, writing skills, defining the Gospel According To Me to try and poke the LLMs into the right basin - with limited success so far. https://github.com/Smaug123/gospel

No progress on the deterministic .NET runtime.

(Same comment from last month: https://news.ycombinator.com/item?id=45869787)

For the last 3 years, I have been working on a web tool to help me at work: debugging ASN1-encoded data (keys, certificates, Kerberos/CredSSP/SPNEGO/etc data structures, and more) and performing various cryptographic operations. This app is available online; you can try it [0] (no sign-in/up needed).

This December, I reached a huge milestone: I implemented ASN1 tree editing [1]. Now I can edit the ASN1 tree directly in the browser (read my blog post for more details: [2]).

I'm happy that I wrote this tool. I use it often to help me debug my protocol implementations and/or debugging. I know that some of my friends use the JWT debugger and ASN1 parser from this tool. Maybe some of you will find it helpful too.

[0]: https://crypto.qkation.com/

[1]: https://news.ycombinator.com/item?id=46255464

[2]: https://tbt.qkation.com/posts/announcing-crypto-helper-0-16/

I am working on a little browser extension to copy github pull requests into the clipboard to share them in chat apps for reviews. I am used to manually ping people with the link and found that having the pr title and the link format github uses makes it easier for people to understand what they are about to review, and potentially makes for a quicker review :).

https://chromewebstore.google.com/detail/github-pr-pretty-li...

I’m working on Lunara AI: https://lunaraai.app

It’s a meditation app where an LLM guides you without the usual back-and-forth chat. You set your preferences up front (style, duration, focus), then it delivers a structured session end-to-end.

I have a long list of ideas and features to try, but right now I’m focused on feedback. The app is live on the App Store, and I’d love input on: • What would make you try an AI-guided meditation app (or avoid it)? • What settings matter most to you (duration, tone, technique, background audio, etc.)? • What would make the guidance feel trustworthy and not “chatty” or generic?

If you’re willing to test it, I’m especially interested in first-session impressions and what you’d change to make it something you’d actually keep using.

https://terminalwire.com

It’s “Hotwire for command-line apps”, meaning you can ship a CLI in a Rails app without building an API. The dream is to make it work for all major web frameworks.

Terminalwire streams stdio, browser launch commands, and a few more things needs to ship a CLI for a SaaS quickly.

The best part is when you want to ship a feature for the CLI, you don’t have to worry about pushing out updates to clients and making sure it’s compatible with your API.

A more interesting development are companies that are using it as a replacement for MCP in AI stacks. They’re reporting less token usage and better overall results.

https://sleevenote.com/

I'm working on a new kind of DAP (Digital Audio Player) with the focus being on a better visual experience to go alongside the music. Post going in-depth here: https://substack.com/home/post/p-181321780

I'm still working on my Web Server Library .NET Core https://stratdev3.github.io/SimpleW/

I'm rewriting from scratch : https://github.com/stratdev3/SimpleW/releases/tag/REWRITE

I'm working on a tool in golang to handle requesting access to private and sensitive databases in Postgres. The goal is to help orgs reduce handing out long-lived postgres creds with broad permissions.

The flow is you declare the databases and tables you want to access and the specific permissions you want, an operator reviews it, if accepted it generates a temporary postgres user with those permissions you need. Also, all the connections to the database are proxied through the app, so the domain name and port are random and short-lived, so you don't expose internal database hosts. As an extra, all SQL statements during the user sessions are logged if you want to see that.

It's available at https://github.com/yungwarlock/pam_postgres

My primary goal of this is to drill myself as a product engineer working on a technical product.

I’m finishing up a language identification model that runs on cpu, 70k texts/s single thread, 13mb model artifact and 148 supported languages (though only ~100 have good accuracy).

This is a model trained as static embeddings from the gemma 3 token embeddings.

https://github.com/dleemiller/WordLlamaDetect

I'm working on adding features to the snakemake aws batch executor plugin. The existing plugin supports execution on AWS Batch by dynamically creating job definitions based on rule resource configuration, but was missing support for features like using different containers for different rules, consumable resources, secrets, etc. Two approaches:

1) https://github.com/radusuciu/snakemake-executor-plugin-aws-b... (my fork). Just add the features to the batch job building code 2) https://github.com/radusuciu/snakemake-executor-plugin-aws-b.... This is more experimental and not yet fully working. I wanted to try a few things. a) can we rely on existing job definitions (managed through IaC instead). b) can we implement a fire-and-forget model where the main snakemake process runs on Batch as well? c) Can we slim down the snakemake container by stripping off unnecessary features.

Yesterday I released https://npmdigest.com, a micro-SaaS to work around the frustrating experience of getting spammed by npm emails "Successfully published X" whenever I release new versions of my packages.

And I completed a pretty long technical article on my personal blog that goes pretty deep into SSE + Postgres + v8 + some linux kernel stuff: https://sam.elborai.me/articles/how-sse-actually-works-deno-...

Some other projects I'm currently motivated by

- pls, my take on what my ideal release automation tool would be (currently deno only): https://github.com/dgellow/pls

- steady, an OpenAPI spec validator and mock server: https://github.com/dgellow/steady

https://testeranto.com/

Testeranto: The AI-powered BDD test framework for polyglot projects.

Teseranto is test framework that integrates with LLMs to bring together BDD and vibe coding

I’ve been building a crypto market visualization and simulation tool because I kept running into the same problem: TradingView is great for charts, but it’s hard to answer simple “what-if” questions like would rotating into another coin actually have helped or did trimming and buying back improve outcomes, or just feel good in hindsight. So I started building tools that simulate these scenarios directly on historical data. For example: - flipping from coin A into coin B and back again over a chosen period - selling part of a position and buying back later after a drawdown

I’m still early and adding ideas as I go, but it’s already helped me questions I had.

Examples: - Coin flip simulation: https://www.blockviz.xyz/simulation/coin-flip - Sell & buy-back simulation: https://www.blockviz.xyz/simulation/sell-buy-back

Curious if others here run into similar “this felt right, but did it actually help?” questions.

* Continuing development on Breaka Club (https://breaka.club/blog/why-were-building-clubs-for-kids) — Turning kids from consumers into creators.

* GodotJS — https://github.com/godotjs/GodotJS — TypeScript for Godot

* Consulting for companies using GodotJS (and Unity).

I've been a long time Windows user (20+ years) who heavily uses WSL 2 as my dev environment with tmux / Neovim but I'm switching to native Linux before the end of this year.

I tried once 7 years ago but ran into major audio issues that were a deal breaker but I'm hoping the Linux kernel has improved. I have the same hardware as before.

My dotfiles have been public for many years and can 1 shot a new or existing system in a few minutes with a bunch of command line tools on Debian, Ubuntu, Arch (with or without WSL 2) and macOS. It has an install script and theme switching for a long time which I've used to set up a a few systems (personal desktop, laptop and work laptop).

I've been casually tweaking a laptop running Arch with niri. I'm preparing a bunch of things in my https://github.com/nickjj/dotfiles to prepare for that push which will work on Arch Linux and be opt-in to install and configure a GUI and assorted tools.

We’re a group playing floorball (https://en.wikipedia.org/wiki/Floorball#:~:text=Floorball%20...) once a week and needed a simple way to know we got enough players to play.

I’ve been mostly vibe coding RecurAt (https://recur.at) to get a feel for coding this way and been learning a ton about frontend development at the same time.

Next.js app hosted on Vercel.

not really projects but productivity tools for codex/claude code etc

https://github.com/agentify-sh/safeexec/ - this will prevent rm -rf or git reset --hard being run by off chance when used with --dangerously-bypass-permissions flag

https://github.com/agentify-sh/10x/ - codex productivity booster which adds skills (most likely need to be phased out now since codex has skills), redundant checkpoint/backups with git and jj, subagents, parallel agents, PLAN/RUN/THINK modes.... im actually not sure about releasing this anymore because of how much better codex has gotten.

https://easel.games

I'm working on a beginner-friendly online programming language for teenagers who want to learn to code. I think there is not a clear enough winner for what teenagers should do after they learn Scratch so I am trying to make it.

LLM-driven narrative game. Main technical issue is how go do compaction. I’ve devised a memory hierarchy that compacts the story to a constant amount of tokens per layer. Arc -> Scene -> Moment -> Line. Not sure if that’s the right dimensions to decompose into. Also tinkering how to get the right amount of “divergence” for story progression option generation. A lot of unanswered questions…

A web app platform written in Rust with the primary focus on zero-dependency apps and using Pingora as a forward and reverse proxy. Targeting Hetzner for hosting and Cloudflare for DNS. I love Rust but don’t like the long compile times which led me down this rabbit hole (zero dependencies make for fast compiles).

OpenSpend is an open-source, free-to-use, self-hosted payment gateway for your next app, project, or business. It lets end users send money directly to businesses using their online banking app or website. And businesses can check live and instantly whether the money has been deposited or not.

Learn more at https://github.com/openspend/openspend

https://approval.vote / https://ranked.vote Both svelteJS static apps that render approval voting and ranked choice voting elections.

I got frustrated on how difficult it is to compare many elections using alternative voting methods against each other, so ended up extending a friends project, adding more results, details and statistics.

Just added datasette lite to the approval voting site. it’s pretty cool to query the SQLite db in the browser. https://approval.vote/data

Working on an app to learn Hiragana.

A gamified approach that gradually introduces characters.

As I'm currently in Osaka I can use my own app well :) Hoping to make learning Japanese more fun.

It's here: https://app.tolearnjapanese.com

It's based on my simple web app to learn Korean vocabulary. I'm taking elements from Anki and other language learning apps, but making it focused so it works well in a broader language learning journey.

For learning Korean vocabulary: https://game.tolearnkorean.com

Have also been writing about these in my monthly mail-letter: https://bryanhogan.com/follow

Working on a little project to make Spotify recommendations better.

You get to choose the genres you're interested in, and it creates playlists from the music in your library. They get updated every day - think a better version of the Daily Mixes. You can add some advanced filters as well, if you really want to customise what music you'll get.

https://riffradar.org/

I’ve been working on a TLS proxy/TLS terminator that can handle 3000 TLS handshakes per second (basically an stunnel replacement, but stunnel crashes at under 100 handshakes per second) as a pet project, but I’ve realized that with some polishing this can be really useful.

https://github.com/novotimo/tlsproxy

This is still in development (todo are privilege dropping, in place config reloads, log burst suppression, multiple listen sockets (which paired with the Linux kernel gives free load balancing capabilities), and detailed TLS configurability), but it already matches both nginx and HAProxy’s speed (entirely bottlenecked by OpenSSL crypto by this point) at a tiny fraction of the attack surface and memory footprint (10-15kb per worker process last time I checked).

If anyone wants to take a look, please roast my code :)

I am working (mostly vibecoded) a Git history explorer in Go+modernc.org/Tk9.0: https://github.com/thiagokokada/gitk-go. It is heavily inspired in gitk, this is why the name and usage of Tk for the interface.

The reason for it was because after testing multiple Git history explorers, I still think nothing beats the gitk. Sublime Merge is probably the only alternative that I would seriously consider but I don't really like the UI and the fact that it is proprietary (I am not against proprietary software but I prefer an opensource solution when available). Other alternatives have some bugs or the interface few too slow. gitk itself is mostly fine, but sadly it tries to load the whole repository in memory and this is causing issues every time I try to navigate through nixpkgs (I can see the memory consumption going through the roof while the UI slow down to a crawl).

gitk-go loads a batch of commits (1000 by default) and once you get at the end of the list it loads more. I also add a few features that I miss from gitk, for example if you do any change in the repository (change branches, add files to stash, etc) it will automatically reflect in the UI.

Again, the code is mostly vibecoded since this is the first time I decided to try this from scratch. The code works well for my use cases and it is enough to replace gitk for me, but I can't guarantee there is no bugs and the amount of tests are small. But still, it was fun to see something that I wanted to create for a while (I had this idea for a long time since the issues with gitk that I was having) finally taking form. Probably the program is not useful for anyone but me, but if anything this is a feature, not a bug.

https://radiant.computer

A new vertically integrated operating system and computer for the next generation.

Working on the native language and OS currently!

A platform that takes your podcast footage and produces the podcast(with trailer), mid form clips and reels by analyzing what your audience responds to posts it on various social media[0].

A fiat to crypto payment gateway for businesses and freelancers without a strict KYC. Users can pay using card and merchants can claim instant crypto settlement[1].

WIP: a casino algorithm that outperforms most casino algorithms in terms of user retention over a long period of time with the objective function of maximizing long term profit.

[0]: https://xclip.in [1]: https://obliqpay.com

I'm working on brand new type of collaborative whiteboard that allows anyone (or team) to drag-n-drop items from their devices onto the board.

The problem I'm solving: On a team, people and their files are scattered everywhere.

Solution: A canvas that attempts to open (and edit) as many file types as possible (images, xlsx, pdf, docx, cad). This means you can have people and files on the same page.

It's the only whiteboard that can natively render docx and pdf so far; these can also be edited directly on the board without having to use dedicated software.

It has a built-in Drive where you can store/backup files that syncs across your devices.

There's a few widgets such as Kanban, sticky notes, cards.

And of course, there's agentic LLM (Gemini 3 Pro) that can take actions such as viewing the board, reading documents on the board, and editing items on the board. For example, you can tell it to read a pdf, then write a spec sheet (in docx), or create tickets on a kanban.

I'm launching a private beta next month if anyone is interested in testing it out and giving feedback.

https://copo.st

Instantly create your Tiktok/Instagram-like app for your community or brand

Enterprise software for SAP migrations. Thousands of companies need to move from ECC to S/4HANA before 2027, and master data quality is the #1 blocker. Built a Windows extraction tool + web app that cleans and transforms data automatically. What used to take consultants months of manual Excel work now happens in days.

Mu - a personal app platform that includes chat with AI, news, video, posts and now mail. Solving a personal problem with ads, algorithms, tracking.

Tech is too addictive now. We need to get back to utility value. I'm trying to build an alternative with myself as user 1.

https://mu.xyz https://github.com/asim/mu

Deciduous.

It's a way of working/tools for working with an LLM that allow you to track decision tree graphs, have the robot make more informed decisions and build its own logical chain for history keeping, and modeling all the work as a DAG of events, goals, outcomes, decisions, and observations that network together to allow you to work better/smarter/faster, giving it a living and recorded memory and ways to explore all this.

It's easiest to check out the short demo on the site.

It also links to the live graph of how the tool has built itself.

http://notactuallytreyanastasio.github.io/deciduous/

I've been reverse engineering a few old games I used to play a lot. Traffic Giant, Creatures 2, ... It's been interesting.

Making a phishing domain detection tool through Certificate Transparency real time scanning.

https://catchPhi.sh/

I intend to make it "too cheap to pass", because we should all be able to monitor Certificate Transparency.

Email me if you want to be a design partner!

https://postcrest.com It is a SaaS that allows you to create virtual characters to create, schedule and post educational or entertaining content on social media platforms with consistent personas. It is still very much work in progress, but already has some basic features working.

It allows anyone with ideas for engaging content to become a content creator without having to appear in front of the camera.

I am working on https://github.com/furkan/dockerlings, a TUI for learning docker (name and concept inspired by rustlings). It has attracted a surprising but welcome amount of interest, and I'm looking into extending it with more advanced exercise paths. Open to feedback & collaboration from all.

SellerMate [https://sellermate.neilvan.com]

I'm currently improving this order queueing and sales recording web app for small coffee shops. Made primarily for my friend's coffee shop. Data is stored locally, and the app is fully functional when offline. There is an optional "syncing" feature to sync data with multiple devices which requires a sign up. This is a Progressive Web App built with Web Components. The syncing is made possible with PouchDB/CouchDB. Completely free to use.

As a medical student, I'm making a site of free tools for medical trainees, the biggest being a rank list tool to balance logical factors and gut ranking as well as pairwise comparisons/maps/etc. https://medcompass.tools/rankcompass. Might adapt to other avenues to help people pick housing and other things that require ordered lists and decision tools!

I also make interactive tools for artists at https://artres.xyz.

I've been super inspired by all the amazing things I've seen on Hacker News.

I’m building an open-source project to reduce GitHub Actions CI costs by running jobs on self-hosted runners on owned hardware. The motivation is to fill the gap between local workflow execution by projects like https://github.com/nektos/act and self-hosted runner setups on the cloud. My team’s requirements are simple and we don’t require all the features. We hope to keep ops simple and save costs. Any efficiency boost due to caching will be A bonus

Pagecord!

An independent blogging and personal website builder. Source available (Ruby on Rails).

It’s not a novel idea but it’s gaining decent traction because it’s simple and (I think!) makes you want to write more. Which is basically why I built it.

Blog by email, custom domains, internal private analytics, theming and more!

Free forever plan, or only $29/yr for everything. Priced as I think personal/blogging sites should be. Everything is too expensive these days.

https://pagecord.com

I have always wanted a super simple local startup job board for my country. No calls, no AI chat bots, no fancy matching. Spending 1-2 hours a week on this

https://estonianstartupjobs.ee

I am working on way too many things to add here but one of them is https://www.familygpt.chat - ChatGPT for kids with parental control. I built it for my kids.

If you want the full list of projects (11 apps, 3 podcasts and some books) see https://www.emadibrahim.com

I’m working on Reflect [0], it’s a privacy-focused app for self-tracking and self-discovery. You can track metrics, run self-experiments, set goals, view correlations, visualize your data, etc.

[0] https://apps.apple.com/us/app/reflect-track-anything/id64638...

I'm building a Typeform/Google Forms alternative that integrates into existing applications and stores data in your own database. It allows you to define forms in JSON Schema or JSON Forms. Forms can be added or removed dynamically, and submissions are sent to your backend and in turn stored in your database.

Built using our full-stack library toolkit Fragno [0].

[0]: https://fragno.dev/

I'm working on Bloomberry, an alternative to Builtwith for finding companies that use a specific tech vendor/product/technology. Unlike Builtwith, it focuses a lot more on technologies that can't be detected solely from the front-end (ie devops tools, security products, CRMs, and ERPs)

https://bloomberry.com

Substrata: https://substrata.info/

https://x.com/SubstrataVr

Open source metaverse. Just added rideable jetskis!

Written in C++ and OpenGL. Works on the web as well via Emscripten, WASM and WebGL.

I built a website (https://hpyhn.xyz) for hacker news users for reasons: 1. hn comments are valuable, I've spent a lot of time going through hn comments. I think there are valuable comments buried in the threads with fewer points, so it's not enough to just read top3 threads.

2. Sometimes a good post is ignored due to a bad title, sometimes I still have no idea what the post's theme even after I read a few paragraphs.

3. I want to filter out some posts I'm not interested in, but I realized I need read some other posts it's not a simple yes/no problem, so I gave every post a interesting score based on my own preference

so I built this tool to save my time while not missing out too much on hn

https://plowshare.social/

Platform for sharing Magic the Gathering EDH games.

I've been working on an award flight search tool -- theres so many interesting problems to solve: - How do you bypass bot detection? - How do you achieve fast loading results? - How are you able to teach users how to get the best deals possible w/ award travel.

Theres so much more to do in terms of reliability (bypassing bot detection) and onboarding new programs (right now, only American, jetBlue, Delta, Virgin Atlantic and Alaska are supported). But progress has been good and im excited about it. https://awardlocker.com

Feels like I’m the only one here not already a greybeard, so just gonna share in case it resonates with anyone not already building awesome things: I’m working on learning how to program with C++. New at this, loving it, hoping to make a career change into IT in the coming year.

I’ve been playing with a Arduino compatible Uno R3 and a WS2812B RGB addressable LED light strip. I cut a 3m strip into 5 strips that are 28 LEDs long and soldered the lights together to make a display. I’ve been working on coding a font for the lights and can display about 10 different characters currently. It’s my first time really doing any sort of embedded work and my first time actually successfully soldering. Now that the thrill is gone since I solved this challenge I was thinking of making a remote control snow plow.

At least in principle, I'm still working on PAPER (https://github.com/zahlman/paper). (Or I should say "resumed"; I was having a rough time of it mentally in the summer through October or so and didn't really get any actual coding done.)

This has most recently involved a side diversion into a little tree-processing library (where file hierarchies are a special case) — Show HN within the next day or two, fingers crossed — and setting up a fork of https://github.com/pypa/packaging to support EOL Python (back to 3.6) and make some general simplifications (because even this is a fairly large wheel compared to the target project size).

Hoping I can kick myself back into the blogging habit again soon, too.

Fringe physics: Trying to understand WTF the A field is in electrodynamics, and how I can measure it for a price I can afford. Specifically, I want to communicate through a wall of rock or sea water at VHF frequencies, with high bandwidth. I just upgraded my subscription with ChatGPT to try to grok all of the physics involved. It decided that since this could be used to covertly exfiltrate data, it wasn't something that could be discussed. ;(

Recently a friend acquired a Collins KW-1 transmitter, serial number 1. I helped him get it working again after a long period of disuse by it's previous owner. You wouldn't believe how often it turns out that wires and bolts don't actually conduct electricity.

- Building a micro-learning platform that uses AI-powered role plays and conversational assessments to gauge learner understanding instead of eg. a multiple choice questionnaire.

- I’ve just started designs and initial setup for a personal productivity system heavily inspired by the Newton & HyperCard and built in Rust. Idea is to use LLMs to build GraphRAG-like connections between content & break out of the standard app+document model. My current thinking is having ‘frames’ of content (notes, sketches, events etc) that are acted on by capabilities and displayed in views (timeline, calendar, stack, knowledge graph etc).

- Also working on a static site generator and CMS webapp that creates sites that can be viewed on anything, from web browser to TUI. Like if Gemini or Gopher also rendered to html.

I resurrected some of my old code for computing hash collisions: https://github.com/DavidBuchanan314/birthday_party (it's actually more of a rewrite)

It can collide 96-bit truncated sha256 in under 24 hours on a 6700XT.

Next steps are a) figure out something interesting/useful to do with it (beyond surprising people), and b) modify it to support accepting contributions from untrusted clients (see "Future Ideas" in README). For a sufficiently interesting answer to a) I could create a "SETI@home"-like system.

A ~102-bit collision would cost $$ worth of rented GPU capacity, and 128-bit is optimistically possible with enough crowd-sourced compute (a ~5-figure dollar cost if you were renting).

TTRPG Narrative Engine — https://test.qualy.dev

I'm building a session prep tool for tabletop RPG game masters. The idea is to make a narrative engine rather than another static wiki. Most existing tools are great for storing lore, but they don't help you run the story. I wanted something that supports the "create now, refine later" workflow — get ideas into structure fast, then refine as you play.

Core features: - interconnected world-building (NPCs, factions, locations) and story-building (situations, fronts, clocks) - Bidirectional linking — connecting a story hook to an NPC makes that hook visible from the NPC's view - Clock system with milestone consequences that can spawn or edit entities - Situations fire different consequences based on outcome (players engaged vs. ignored the hook) - Material waste detection — flags under-connected content so you know what's prepped but unused.

The main workflow is mindmap-based. Each entity gets its own context layer showing direct relationships. (Soon available in demo version) Working on next: automatic player-facing content. As players complete situations, public notes from involved entities get published — so the GM doesn't have to maintain a separate campaign log.

Stack: TypeScript, Effect-TS, SolidJS, Cytoscape (graphs), Leaflet (maps)

The hosted version is rough — I've been using it to get early feedback from GM friends. Happy to hear thoughts from anyone who preps campaigns

Still working on Librario, a simple book metadata aggregation API written in Go. It fetches information about books from multiple sources, merges everything intelligently, and then saves it all to a PostgreSQL database for future lookups.

You can think of it as a data source, or a knowledgeable companion that can provide comprehensive book information for online booksellers, libraries, book-related startups, bookworms, and more.

I got a pre-alpha build running for those that want to test it out and the code is out on SourceHut[1].

Been really tough to find time to work on it because I have a baby that only sleeps in my lap, but I’m making progress very slowly.

I recently hired someone to rewrite the entire database layer, as that was written with the help of an LLM for the prototype, which should improve things too.

Feedback is very welcome :)

[1]: https://sr.ht/~pagina394/librario/

I keep on grinding on my Kubernetes IDE that allowed me to quit my day job over 3 years ago: https://aptakube.com/

I’ve also been playing with Bun and I have a business idea that would be a good fit, and huge potential but I just don’t have enough time to start something new anymore.

I've been working on Mukbang 3D for the past year and a half—an iOS app that converts food videos into interactive 3D models using photogrammetry. Record a short video of food, and viewers can rotate/zoom/explore it while the video plays.

I recently added pose tracking of the 3d model so I can overlay 3d effects onto the underlying video.

Here's a demo: https://mukba.ng/p?id=29265051-b9c7-400b-b15a-139ca5dfaf7e

https://www.nihongoeasy.com/

A kanji typing game. Vibe coded it in two evenings.

I shared this last month, and it seemed to resonate with people, so I'll share again and maybe new eyeballs will see it this time. I'm continuing to build a body of work on my retro productivity software blog, Stone Tools.

https://stonetools.ghost.io

Previous articles which resonated with HN were on Deluxe Paint and VisiCalc. The latest post, "HyperCard on the Macintosh," seems to be making the HN rounds currently. Bret Victor himself chimed in on the HyperCard article over on Mastodon, filling in some nice historical footnotes. https://posts.dynamic.land/@bret/115716576717006637

Unlike many (most?) other retrocomputing explorations, I specifically do not look at games nor do I tie myself to any particular machine, though I'm focused on the 1977 - 1995 period. I spend a minimum of two weeks with each productivity title, trying to learn it, building things with it, and generally trying to understand its approach to solving problems. I'd characterize my writing tone as casual, conversational, and decidedly light-hearted.

Each piece of software (so far, knock on wood) gets me thinking about some other aspect of related computing history, so I explore that as a tangent. With the Superbase article, I talked about "the paperless office." With the VisiCalc article I considered its impact on less obvious industries, notably hog farming.

I hope the passion and effort I put into the articles comes through. If you're interested in computing history beyond just the games I think you'll find something of interest on my blog. "This Week in Retro" did a segment about me and my various projects as well, if you're curious to get an overview of what I'm all about (link is queued up at the start of the segment) https://youtu.be/UHYscl1Ayqg?si=7JM1sZagjoqvPjk2&t=2137

It started out as a take-home assignment for a job I’m interviewing for (they asked for about 10% of what I ended up implementing but I wanted to do/show more :). It’s an aggregator for crypto exchange data.

The app reads the public data stream from exchanges, handles the nitty, gritty details of each exchange’s websocket connections, deals with its quirks, cleans up and normalizes the data into a uniform structure (currently only supporting spot trades) then exposes it downstream as an SSE stream.

Uses Go, Templ, and Mithril.js, and is open source

Link: https://metra.sh

Github: https://github.com/hadydotai/metra-sh

Continuing work on my AI game development agent for Godot, Ziva[0]. Basically, big games are made in game engines, and game engines are hard.

Right now you can use it to chat about and modify basic things in your game; it automatically adds open scripts, scenes, and assets to your context, and uses around 50 MCP tools for editing. Currently working on refactoring the agent loop to use Claude Agent SDK so we can piggyback off the Claude Code developer experience and focus purely on the tool and integration side.

[0] https://ziva.sh

https://mastrojs.github.io

The simplest web framework and site generator yet – no leaky abstractions between you and the high-performance engine that is a modern browser.

I'm still tweaking my tool for creating accessible Tailwind-style color palettes for web/UI design that pass WCAG 2 contrast requirements:

https://www.inclusivecolors.com/

There's 100s of color palette generation tools, where most only let you customize a single color then try to autogenerate tints/shades without much thought about accessibility or tints/shades customization. The main features of this tool are:

- Emphasis on accessibility. A live UI mockup using your palette warns you if your tints/shades are lacking contrast when used in practice for headings, paragraphs, borders, and buttons, and teaches you the WCAG rules. Fixing contrast issues and exploring accessible color options is also made much easier using an HSLuv color picker, where only the lightness slider alters the contrast checks, and not the hue/saturation sliders (most tools use HSL, where hue/saturation changes counterintuitively alter contrast checks which makes accessibility really tough!).

- You can tweak the hue/saturation/lightness of every tint/shade. This is useful because autogenerated colors are never quite right, and customization is really important for branding work when you have to include specific tints/shades. The curve-based hue/saturation/lightness editing UI also makes this a really quick process.

- Instead of just a handful of colors, this tool lets you create a full palette. For example, if your primary color is blue, you always end up needing other colors like green for success, red for danger, and gray for text, then 11 tints/shades for all of these, so you want a tool that lets you tweak, check, compare and manage them all at once.

It's mostly a demo on mobile so check it on desktop. I'm still working on making it easier to use as it probably requires some design background to understand, but really open to feedback!

MCP for Open Notebook - oss NotebookLM alternative

still hosted on private GH: https://github.com/PiotrAleksander/open-notebook-mcp We will probably soon merge it to the main repo

- Inspiree by my wife to pursue my weaponized desire to create things and organize my thoughts, I’m trying to gather my marbles to learn Swift/SwiftUI in order to try building an iOS app that which will automate directing and funneling data to where it needs to go.

- Updating my personal SSG to support Obsidian fully, which should simplify the publishing process a bit more. https://0xff.nu/hajime/

- Trying to find a new job, which is proving to be more difficult than it should be if you have certain standards about work/life balance.

- Writing an informative article about automating with/for ADHD which explains the motivation and solutions that I came up with for perhaps the weirdest, yet most annoying issues I face or forget about on a daily basis.

A multi-purpose scrapper to turn any webpage into structured data: https://news.ycombinator.com/item?id=45870231

It uses LLMs to generate python code to scrap a webpage to fit any Pydantic model provided:

  from hikugen import HikuExtractor
  from pydantic import BaseModel
  from typing import List
  
  class Article(BaseModel):
      title: str
      author: str
      published_date: str
      content: str
  
  class ArticlePage(BaseModel):
      articles: List[Article]
  
  extractor = HikuExtractor(api_key="your-openrouter-api-key")
  
  result = extractor.extract(
      url="https://example.com/articles",
      schema=ArticlePage
  )
  
  for a in result.articles:
      print(a.title, a.author)

I’m building a web application to catalog your guitars and amps and pedals and record each time you service them and when you bought or sold them. It’s a free service and I’m looking for BETA users to try it out. I switched up the tech stack and went with Rails with minimal AI assistance to go back to feeling like I did back in uni when I was building applications for fun and had to figure things out by trial and error. It’s been nice switching gears and doing things my way.

Take a look at https://pickpedia.app

https://Jar.Tools - online java jar files decompiler and content viewer

working on an AI browser: https://github.com/stingtao/ai-browser

I found Comet so useful and I vibe coded my own version to seek AI possibility

Also on an live interactive quiz service: https://live.stingtao.info/?lang=en

This helped me host live event for 1,000 participants

I'm looking at how to introduce unique, borrowed and GC'd reference types into the IR for my VM/runtime.