Hi everyone! :)
If you're planning to create a simple game that's playable in the browser, I created a simple template with boilerplate code and a util script for development. You can get the code on GitHub.
It uses Fennel (a lisp that compiles to Lua), and TIC-80 a fantasy computer that can compile to WASM and WebGL. Apparently, this stack has been widely used in past lisp jams.
Here is a Fennel tutorial, and here some TIC-80 tutorials.