go mod edit -replace=github.com/alexedwards/argon2id=/home/alex/code/argon2id
go mod edit -dropreplace=github.com/alexedwards/argon2id
go tool trace /tmp/trace.out
go tool pprof -http=:5000 /tmp/cpuprofile.out
go tool pprof --nodefraction=0.1 -http=:5000