There is a curated list of links for german audiobooks: tarnkappe.

Cannot find canvass on f-droid, got a link?

Kodi multimedia center.

Restic, a reliable backup solution.

This is a good starting point if you want to dive in.

Audio Books Bay (ABB) is good too.

Not sure, maybe “diagramming”. Btw there is a good alternative to draw.io for self-hosting called Excalidraw. Very easy to set up with docker.

Nice list! Btw draw.io is not optimized for mind maping. For mind maping I use Freeplane and realy like it.

YT plugin for Kodi is quite decent. Have it daily in use, no issues so far.

Not as powerful as Tasker, but for some basic automation tasks PhoneProfilesPlus is a good alternative.

I bet soon more airlines will follow. Our cars are no different either. No much options left for traveling.