I use OpenScale to connect to my 10€ smart scale for tracking of weight, muscle other parameters. But not for food intake.

No, programs not downloaded with the package manager are also not updated by it. Many Programs, like Firefox and probably Mullvad bring an autoupdate feature that is enabled if they are installed manually. If an update is available you will probably get a notification in the app to restart your browser so that the changes are applied.

Last time I looked it had way less features then yunohost and its closed source.

We don’t want more trash up there that can’t be repaired

Des, it has, what most others lack: Single Sign In and many Apps.

Last time I researched it I didn’t found easy answers. Do you have an easy script?