I still use the last open source version of Joliebulle, which has been outdated af for the best part of the last 10 years but still runs in a Debian 11 Distrobox container. It’s basic but functional.

My dream project would be to fork it and update it and migrate it to libadwaita but I don’t have the time nor the skills nor the time to up my skills to do it (and I refuse to slop-code the shit out of it).