Hey prolic :) checkout mine, also in Haskell but for web. I got inspired and used some of your code from Futr, but decided to build it on web, because with monomer it was complicated.
https://brakubraku.github.io/dingydongy/
https://github.com/brakubraku/ding-dong/
Wow, that's so cool. I'll have a deeper look tomorrow. Btw, you cannot copy paste GPL licensed code and re-publish as MIT.
It was under MIT when I first started fiddling with it, but happy to learn how to do it properly.
Oh that's right, leave it as is.
I ditched monomer already, the app is now based on Qt5.