Writing an rclone backend for borg is something I have wanted to do for a long time.

However I found that the backends weren't well abstracted enough in v1 to make that easy.

However for v2 Thomas Waldmann has made a nice abstracted interface and the rclone code ended up being being only <300 lines of Python which only took an afternoon or two to make.

https://github.com/borgbackup/borgstore/blob/master/src/borg...