I'm a master of half finished projects, so here's one that's half finished and one that's actually published and has a half finished user's guide: a PWA client for the iBroadcast music service [0] and a static blog generator [1] that I use to generate my blog [2].
Since all of my free time programming nowadays is in Gleam, I hope to have better examples for you in the future. :)
[0] https://git.ahlcode.fi/nicd/elektrofoni