Indeed! saljam asked me about a month ago what PAKE he should use with a Go implementation, and since there isn't a canonical one I put together a CPace implementation on top of ristretto255: filippo.io/cpace. It's a wonderfully simple algorithm when instantiated with a prime order group such as Ristretto.

There are some implementation notes in the README: https://github.com/FiloSottile/go-cpace-ristretto255