Yes. Obsidian stores everything in plain text file and its config in the .obsidian folder. You can sync this folder to anywhere. Only problem that occurs occas

Yes. Obsidian stores everything in plain text file and its config in the .obsidian folder. You can sync this folder to anywhere. Only problem that occurs occasionally is when two people work on the same file. This will result in sync conflict. Exception is if you work in the Nextcloud UI collaboratively, but Nextcloud does not support wiki links [[ ]] and uses its own linking format (appens file id to any link). I also git commit my personal vault and use working copy to sync with my phone. On my phone the Obsidian repo is synced with the local Obsidian app folder. This is more complicated to setup. But it works. Moreover my personal vault also contains git submodules. So I can stitch many Obsidian vaults into one (and make a big mess).