It‘s used in Facebooks css. Remembered it from a nice article from Ahmad Shadeed. And while this limbo sure has some usefulness, it‘s way too obscure to use for the fun of it.

To add to this: CSS really has come a long way. This border-radius example can be done with Container Queries by now, which has quite good support already.

Lightning CSS is also great. A minifier at its core but also includes transpiling for older browser

Definitely not widely supported enough. Made the switch from sass back to css quite a while ago and let postcss polyfill less supported features like nesting.

I would go with Jellyfin as a server and Mopidy client as outputs. Like an rpi with an audio hat or class d amp hat. Planning to add Snapcast to the mix for multiroom audio but didn’t find the time yet.

Using a GitHub repository wiki is a low effort / zero cost option. https://docs.github.com/en/communities/documenting-your-project-with-wikis (Clearly not as charming as something self hosted though)