Stardew Valley on OpenBSD is a thing! Found a fix for the save/load bug! Thanks-no-thanks MonoGame for shipping all kinds of system dll that messed things up...
Now I can have my own Puffy farm!
Thanks for everyone's advice on the way... They were all pieces in the puzzle of trial and error!
@mulander It's all accounting. Tarsnap will bill you for metadata back & forth. In this case, it will be "block 1 now only used in backups A, C, and E." Doesn't matter which order you delete in.
It won't re-download blocks you delete; it only updates the ledger.
IIRC --dry-run should give decent guesses on delete. It *should* 90% work from local tarsnap cache, unless you have corruption. (It'll use some bandwidth to verify local cache.)
Does that help?
@mwlucas apologies for birdsite link, I know you wrote a book about tarsnap in the past. Did you investigate how this specific situation would count against quotas? I'm finding it hard to estimate what / if any cost will be generated by pruning old archives.