Vorta is a cross-platform open source backup client. It makes managing Borg backups easy and there is no need to run commands in the Terminal. Vorta is also open source and everyone can contribute to improve the app or look at the source code.
Vorta is a fairly new GUI for BorgBackup (or Borg for short), a command line backup tool with encryption, deduplication, compression and validation. Both Vorta and BorgBackup are free and open source software, and they run on Linux and macOS. I'm sure a crafty Vorta or Founder would be able to come up with even better stuff than that. The Borg, imo, is consistently overrated as a threat. They tore through the Federation because we had weak defenses and are dreadfully attached to the people the Borg are turning into enemy foot-soldiers, so we don't even want to shoot our own enemies!