I then use FolderSync[3] to SFTP synchronise those two backup folders across to my server regularly when the phone is on the home wifi. (I also two-way sync my photos folder which is really quite handy.)
I use to also occasionally do a full sync of my phone contents to my server using FTP[4] although since upgrading, Android 11 has clobbered access to the Android/data folder making that problematic.
Using Termux + Borg (or Restic) so push full full backups looks attractive. Never seen Termus before. Thanks.
[1] https://play.google.com/store/apps/details?id=com.keramidas....
[2] https://github.com/machiav3lli/oandbackupx
[3] https://play.google.com/store/apps/details?id=dk.tacit.andro...
[4] https://play.google.com/store/apps/details?id=com.theolivetr...
It is a shame, it has been a mainstay for me, restoring apps and data across at least three phones now. I'm hoping OAndBackupX works out, but have not really battle-tested it yet.