Vaultwarden on Asustor - breaking app changes require migration

Hi,

I’v been running Vaultwarden on my Asustor NAS for a couple of years. The app auto-updates via the Asustor interface, so I’ve not been actively reviewing the changes.

Recently, the mobile app has stopped working - it logs in, but no passwords listed. I believe this is because I need to migrate to the Vaultwarden-MariaDB app in the Asustor app library. I can see Google search results showing that the “Vaultwarden” app is discontinued, but helpfully the page is no longer available and there is no warning when you manually check for app updates.

Any help on confirming that Vaultwarden-MariaDB is the correct option (rather than SQLLite or MySQL), plus the least effort migration path for the existing vaults, would be greatly appreciated!

Cheers,

Ian.