Helix 🧬

Watch out to enable “keep on delete” features. I didn’t do that and didn’t see that gigabytes of personal photos got deleted which I had to recover from an old backup. Still don’t know how it happened as I only found out a few weeks after the fact.

Sync is not backup! If there’s a software bug or a wrong setting sync can delete your files. Syncthing is pretty mature so I doubt this was a Syncthing bug, however you shouldn’t only trust Syncthing. I’m doing btrfs snapshots weekly and delete them after three years for important folders nowadays.

Who has time for that?

Managers.

See excludes here: https://wiki.archlinux.org/title/Rsync#Full_system_backup

Or a very very old database system, possibly DB2, where you can’t change the column limits or data types after the fact.

That’s what they want you to believe.