React components might eventually be removed in favor of making the templating system as fast and as elegant as possible but for the time being they provide flexibility.

You can read https://lukeb42.github.io/vertex-interop.html for more info.

The library is actually ~1400 lines of code, and 51KB in size. Not very slim by JS framework standards, so focusing on that for the headline feels misleading.

9kb (minifier+brotli)

We could remove 3kb by removing the router but that's not gonna happen. You're more than welcome to minify+brotli it yourself if you use vertex.js in production.

>Are developers still using commonjs?

Yes, and every other flavor too. "Developers" isn't a single hive-mind entity, and there are many different purposes for javascript, and many different kinds of systems where javascript can be used.

Would you prefer to see ESM or neither?

Courier New is a bad font that no one should choose to use. In typical font-weight terms, where Regular should be 400, it’s 200–250, because it was improperly digitised, not taking ink bleed into account. Windows put some hacks into ClearType to make it render a little less badly, but they’re not dependable these days.

(“Courier”, as provided by macOS, is fine. But Courier New is irredeemably bad.)

Concerning font-family declarations, if you’re doing something like `"Courier New", Courier, monospace`—please just write `monospace`.

(I’m not going to address the font size.)

Beauty /is/ in the eye of the beholder. The rationale /here/ is that the more text in a page the more code you'll fit in your head the more you'll get done, the more confidence you'll have and again the more you'll achieve.