Sigid: a zero-dependency, no_std, three-layer unique ID generator

Hey! 🙂 I made Sigid — yet another crate for sortable unique IDs. I know the ecosystem already has ulid, uuid, snowflake-style crates, and so on. I just wanted to put together something that fit my own needs. Maybe it'll resonate with some of you too 🙂 It has a dependency-free no_std core, support for custom alphabets, prefixes, and checksums, plus full worker-ID coordination for distributed setups — all without extra dependencies or heavyweight components. It's split...