Searxng has it’s own issues like scaling and getting good results. It can still be a good option.

Prebuilt like a traditional server? I personally use an orange pi and it’s pretty good. Just make sure to use the open source arm OS.

There is a docker container setup with automatic lets encrypt and proxy. Can search around for it.

I thought you could install as a docker container?

This is one-click install, easier for beginners / non-tech people.

No it’s an open-source service to host your audio.

Many docker images are not built for the raspberry pi arch. Maybe the newer models don’t have the issue but installing anything like Nextcloud or Seafile was a pain.

I recommend an Orange pi 5 with Armbian installed. Raspberry pi is under powered and it’s a pain getting compatible software for the arch.