Uses PyQt6 [2] for the GUI and Pyinstaller [3] for creating the platform specific binaries. The backup engine under the hood is Restic [4]. The server code is written in Laravel [5]. All the code is on GitHub [6].

I actually really like Backblaze (even use B2 for this offering behind the scenes) so this isn't meant to throw shade their way. Just wanted a private open source alternative. Something like Bitwarden but for backups.

[1] https://backblaze.com

[2] https://pypi.org/project/PyQt6

[3] https://pyinstaller.readthedocs.io/en/stable

[4] https://github.com/restic

[5] https://laravel.com

[6] https://github.com/blobbackup/blobbackup