I thought I managed to get Obsidian working with Nextcloud sync on Android but it's trickier than I thought and it doesn't quite work... but it may work enough for my needs right now.
@rasterweb I've gone with Logseq and Syncthing and I love it! It's kind of changed my whole approach to computer organisation! Syncthing on android requires a forked app and a bit of poking but tis useable. Will watch your Obsidian antics with interest.
@rasterweb FWIW I use Obsidian + Resilio Sync to my Android devices…but I never have Obsidian open on multiple devices at the same time, which makes life simpler.