Lying in bed with fever, I have a sudden realisation: the sync engine I wrote last year is actually a combination of two CRDTs — a last write wins map and a two phase set.
Whether this turns out to be true in the morning remains to be seen!
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Yes but it's private, since it's part of the Commoncog codebase!
I'd recommend reading this instead: github.com/jlongster/crdt (and watching the talk).