This is such a neat solution. As part of my effort to single-stack-v6 and minimum-effort-v4, for my self hosted services and projects, I've always wanted a way

This is such a neat solution. As part of my effort to single-stack-v6 and minimum-effort-v4, for my self hosted services and projects, I've always wanted a way to avoid reverse proxy configuration for each hosted app; v6 can directly listen to a new address.