That’s also an option of course. However, personally I wanted an option entirely outside of US big tech, so that ruled out GitHub.

Codeberg could be an option, but I didn’t want to abuse their service for private, non-oss needs.

Nextcloud + regular filesystem sync works great. I am just storing my vault in a synced folder.

But you would need to host it yourself if you cannot pay for a service like Hetzner Storage Share.