The best app I found this year is Tasker. Not for automation, for privacy. It lets me block background telemetry on apps that have no business connecting to servers I did not authorize. The UI is from 2012 and the learning curve is steep, but once you understand it you realize how much data every app is siphoning without your consent.

Readest. FOSS ebook reader that has some nice customization options and infinite scrolling.

I recently discovered Absorb, an android client for audiobookshelf.

Vikunja similar to todoist but self host

I didn’t discover it, but made it.

https://port87.com/

It’s a progressive web app, so works on any phone, including Linux phones.

PixelPlayer. Local music player.