Switch to zstd compression with borg
Our boxes have spare CPU cycles and so I think it might make sense to switch to zstd here for our compression. zstd is plenty fast but compresses much better than lz4.
It's important to note that zstd functionality was added to borg in December 2017 so pretty much everything we use should have compatible versions of borg by now.
Edited by Sven-Hendrik Haase