Haskell (GHC Wasm backend)
Very interesting. I know support has been there for a while, I am happy to see something in the wild.
I am not participating, but I will for sure play any Haskell entry!
I hope authors can do a post-mortem here (after catching up with sleep, of course).
Not yet, give me a couple of years 
Still trying to figured out what exactly a fragment is and where exactly it fits in the shader pipeline.
Best I can get is it takes data and emits pixel(s)?
We got it done for LD Extra! Digital Signal Processor by macaroni.dev
Programmed it 15min at a time between the busy-ness of life. Haskell is really good for that sort of work. I’m pretty happy with the code ld59/games/ld59 at 193a5c19618f6f8b21c801fd56e64cd6c4a89f42 · ramirez7/ld59 · GitHub
The wasm backend is so cool, and JSFFI is super nice. Way more convenient than the C one haha (which i also like!)