[jtmarmon]

This looks great! Is there a reason one couldn't use this with v4 UUIDs? A quick test shows that they encode/decode just fine. Wondering if I could use the encoded form as a way to niceify our URLs without having to change how the IDs (currently v4 uuids) are stored

[dloreto]

The CLI tool will support encoding/decoding any valid UUID, whether v1, v4, or v7. We picked v7 as the definition of the spec, because we need to choose one of them when generating a new random ID, and our opinion is that by default, that should be v7.

We might add a warning in the future if you decode/encode something that is not v7, but if it suits your use-case to encode UUIDv4 in this way, go for it. Just keep in mind that you'll lose the locality property.