I wrote a guide with a few options: https://avidandrew.com/elevate-your-note-taking-with-obsidian.html

I personally use SyncThing with the SyncThing-Fork app now

I’m self-hosting Obsidian as described below and it works really well. The syncing happens automatically in the background and I rarely encounter conflicts. I’d highly recommend it! https://avidandrew.com/elevate-your-note-taking-with-obsidian.html

What about incus, the LXD fork, with the webui? Incus is so simple/logical for managing both VMs and containers (and you can run docker inside of them) and the webui lets you manage it from a browser if desired