WAL-G only supports AWS, so a lot of us are still using WAL-E. If anyone is looking for a reasonably simple Go project to contribute to, have a look at adding Azure, OpenStack or GCE support to help bring it up to parity.
I'm on-call for this week, but I'm planing to work on merging this soon.
will do, thanks! I guess in_memory_storage_folder.go is a good starting point.
Implementing a SFTP backend using e.g. paramiko in PGHoard should be pretty simple.