I use Obsidian with SyncThing to sync all my files between computers and my own server.
Not sure if that's what you're looking for.
Runs into issues syncing to iOS devices unless you pay for Obsidian's backup service.
Discussion
Ive been avoiding obsidian because its not FOSS but it looks sick.
Another thing i'm trying to look at his portability of my information. like if an app stops being developed for whatever reason than I need to be able to take all of that info from the app and move somewhere else. Hence my janky nextcloud set up. 😅
Me too, but on android