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A comment on uv Running a Script with Dependencies. Parent comment

Re:uv Running a Script with Dependencies by Hackbraten on Tuesday July 22, 2025 @02:04PM (#44650874)
They’re ZFS snapshots, so no. That’s why I’m forced to keep my cache directory in a different dataset.

Ironically, if my backup scheme were using hard links, then I could simply exclude the cache directory from backup, so I’d have no reason to do that mountpoint spiel, and uv’s hard links would work normally.

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Re:uv Running a Script with Dependencies by zahlman on Tuesday July 22, 2025 @02:08PM (#44650926)
... ZFS snapshots don't produce copies of the underlying file data, do they? (Yeah, I'm still a dinosaur on ext4...)
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Re:uv Running a Script with Dependencies by Hackbraten on Tuesday July 22, 2025 @02:27PM (#44651136)
Nothing wrong with ext4! Having choices and preferences is a good thing.

You’re correct, ZFS snapshots don’t produce copies, at least not at the time they’re being created. They work a little like copy-on-write.

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