I've been trying to use it for a while. It worked for a few days, but then up to now it'd want to make extremely slow initial backups (30 hours for 200gb) that

I've been trying to use it for a while. It worked for a few days, but then up to now it'd want to make extremely slow initial backups (30 hours for 200gb) that would fail to upload at the end (they're there locally, but each time I click "backup now" it does another initial backup). A friend of mine has had a similar experience and ended up using Restic. Which is such a shame because Time Machine is great in theory (though I'm not a fan of the standard UI at all you can still mount the sparsebundle and it would be great).