I know nobody cares, but I've made some dramatic (and personally very satisfying) layout improvements to #FingerMaze

https://dropthemath.oblomov.eu/fm/

There's even a short built-in help system if you click on the input method icons on the top right, that works almost as intended except for this #Firefox missing feature:

https://bugzilla.mozilla.org/show_bug.cgi?id=1856460

I think the next step is probably an “options” system to plug in the “hamburger” menu in the top left.