And there I was hoping to find that Lidl had seen the light and started to sell some type of home server under one of their many 'brand names' - Medion (not only Lidl but still), Silvercrest, Parkside, etc. A solidly built box of hardware with a reliable power supply, some slots for storage. A pre-installed Linux distribution with Proxmox on top, a container with Nextcloud (all German companies so they´d probably be willing to participate in this project). Some optional extras which make the thing function as wireless AP and router, media player, IoT hub etc. A number of downloadable container images for running your own mail/XMPP/Torrent/Blog/Search/Media/etc. services. A distributed encrypted backup option were you get to use other's storage for your backup purposes just as long as you offer your own storage for that purpose. That would be true 'sovereign computing'.
> A distributed encrypted backup option were you get to use other's storage for your backup purposes just as long as you offer your own storage for that purpose.
Add an option to enable encrypted backups with Shamir's Secret Sharing [1] to some of your closest friends/relatives, so that a few of them together can decide to decrypt your stuff in the event of your untimely demise.
Hm, maybe I should pitch this to them instead.