cp $STATSVIZ_ROOT/_example/fasthttp/main.go .
cp $STATSVIZ_ROOT/_example/fasthttp/go.mod .

go mod edit -replace=github.com/arl/statsviz=$STATSVIZ_ROOT
go mod edit -replace=github.com/arl/statsviz/_example=$STATSVIZ_ROOT/_example
go mod tidy

go build main.go
! exec ./main &
checkui http://localhost:8083/debug/statsviz/