I switched from this to https://github.com/toppair/peek.nvim as it's in lua and does more a less the same thing.

Combine that with https://asdf-vm.com for the deno runtime.

This vim plugin is the best way to write Markdown documents. It has a lot of features:

    Cross platform (MacOS/Linux/Windows)
    Synchronised scrolling
    Fast asynchronous updates
    KaTeX for typesetting of math
    PlantUML
    Mermaid
    Chart.js
    js-sequence-diagrams
    Flowchart
    dot
    Table of contents
    Emojis
    Task lists
    Local images
    Flexible configuration