Android Auto is a proprietary standard that’s basically glorified spyware - if one thing isn’t being fed to it 24/7 exactly as Google wants it so they can sell it, it breaks. It’s basically just that there are a lot of dependencies that it would need that are fundamentally incompatible with privacy.

All my notes for tabletop RPG stuff, mainly! I run a few Pathfinder campaigns.

Trillium is my personal choice for self-hosted notes. I haven’t really had issues with using it on mobile, but I also just tend to put the stuff I think of when I’m out and about into a single note that I periodically go through and reorganize. It’s been good to me so far, and it has all of the features I really need. If I need something fancier (or public-facing), I toss it in BookStack instead. Then again, I don’t use either of them for business (mostly for tabletop RPG stuff and instructions to friends/family about using the other stuff I self-host), so if that’s your application, I have no clue how it holds up.

You can use nginx or traefik as a reverse proxy locally without opening ports 80 and 443 to the world and host your own local DNS service that points to your server’s IP (and even use a self signed certificate to get HTTPS working).

It’s the cost of federation with instances that try to be giant general-purpose instances (.world and .ee, mostly): just constant shitty takes that overwhelm participants in the conversation. Federation works far better with lots of small purpose-driven instances instead of gigantic ones; my small (<1000 users) specific community-focused Mastodon instance sees absolutely nothing like this and is full of people who intentionally engage in good-faith conversation with the rest of the community while every large instance I’ve seen has the same issues as centralized social media in that regard.

Is there another alternative? Bandcamp is the only similar website that a lot of artists I enjoy use.