No syntax highlighting in the editor? I vibecoded a pretty robust browser Filesystem API based markdown editor myself too last week. Recommend either rolling your own with a transparent textbox layered approach or just using Monaco or https://codemirror.net/.
Thanks for your suggestion. I use plain textarea so that Undo, Spellcheck work seamlessly. Monaco at 5MB+ is bigger than the whole app. Will instead try highlight.js for transparent overlay.
Included a basic "insert math" option to insert LaTeX for math symbols, greek letters, relations & operators. If you work with Math equations regularly, try it out and share any suggestions for improvements.
I did a markdown kanban thing. Filesystem API is very cool and underused. https://github.com/subdavis/mdello/
https://milkdown.dev
Noob question, but how do you author a math equation? There are dedicated editors I guess?
It looks like this:
\int_{-\infty}^{\infty} e^{-x^2}\,dx = \sqrt{\pi}