It’s an old topic but there are still things that are unclear to me regarding the backup feature.
The reason I’m asking is as follow:
After an unsuccessful upgrade and multiple issues, my Nextcloud app was removed (clean remove, including the database).
I have a “full” backup archive available. So I wanted to use the --apps option to reinstall only the Nextcloud part.
sudo yunohost backup restore [name-of-archive] --apps nextcloud --ignore-hooks
But I got a warning/question about whether I really want to restore over an existing installation or not. Since the app is clearly not there, I assumed I was about to overwrite something else, so I stopped right there.
Is the restore system modular as so I can restore only one app out of a larger archive on an existing installation, or is this risky?