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How to back up your GrapheneOS device.
(www.youtube.com)
I personally haven't found the Seedvault implementation to be all that reliable.
Have you found something that works better?
I haven't, unfortunately. I ultimately just use Syncthing, to backup important folders to my server.
There has to be a better way ;).
An unofficial discussion community for anyone interested in GrapheneOS.
Helpful links:
Official Graphene OS Discussion Forum
List of official Matrix channels and other contact sources.