I never wrote a blog post about it, but it is triggered when I plug in my charger and the phone is on Wifi. There are hooks in termux to do so. Thanks for the suggestion to write a blog post about it ;)
Quid pro quo: I've been using Titanium Backup[1] to make backups of all my apps, however it does not working properly with Android 11 and seems to perhaps be abandoned. So I'm now also using OAndBackupX[2] as well, which seems to be doing the job.
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.
Also a long time user. I'm only speculating on abandonment because: it hasn't had an update since Nov 2019; I believe the fix for Android 11 would be a fairly simple permissions change, and; from the comments, no one has had a response from the author on the issue.
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.
