For some time, I had used attic for my linux backup software. I needed to check the contents of some backup files as well as migrate to new servers. During this, I ran into numerous issues with getting attic installed as well as restoring from the old attic backups. Consequently, I looked around and found borg backup software which is a (currently maintained) fork of attic and installed/compiled with no issues. Additionally, borg had borgmatic (automated backups) and allows mounting as a FUSE filesystem.
Additional borg links:
borgmatic
borgmatic config examples
borg FAQ
borg mount