I’m currently using a raspberry pi 5 flashed with Konstakang’s Android TV image, it works pretty flawlessly and takes less than an hour to set up, assuming you have the APKs of everything you want to install. You don’t need to mess around with Google play services because most TV android apps are also designed to run on firesticks which don’t have it.

The one issue I have encountered is that the Jellyfin client very occasionally won’t play some 4k HDR media in the default player (all my 1080p stuff works fine) so I also installed MPV and I turn on alternative player in the Jellyfin settings in the rare case something doesn’t work.

Here’s a wildcard people might not know about: Raspberry Pi Imager

I use it because it’s faster than Etcher and it also has a bunch of quick links to download popular images (mainly for RPI and other arm-based SBCs) in one click which is handy if you use those regularly.