Standalone snowflake proxy 2.6.0 needs go version 1.20

I got the following error while trying to build the snowflake proxy using go version 1.15 and that is currently mentioned as minimum requirement in the

hnapel@raspberrypi:~/snowflake/proxy $ go build
../../go/pkg/mod/ package crypto/ecdh is not in GOROOT (/usr/lib/go-1.15/src/crypto/ecdh)

This is solved by (manually) installing go version 1.20 (in my case using go1.20.6.linux-arm64.tar.gz) , also downloaded a new tree directly from:

git clone

This is not currently reflected in the guide, which still points to the earlier git location.