[freakynit]

Wanted something simple like this, but, this seems to place a hard requirement that database to import to should be empty before a restore.

[rostislav_dugin]

Yes

To restore database - it should be empty (otherwise conflicts are possible)

Technically, you can try to restore to filled DB. But don't think it makes sense to try

[freakynit]

Hmmm... can you not provide such a tool built on top of pgBackRest?

Im using it personally one one of my postgres installations, and it's incredibly simple.

Having web ui built on top would also make it accessible to a lot more people since setting it up the first time is not that trivial.