At some point, Docker finally added this thing that I have wanted for a decade: `host-gateway`. I can now (with a simple matter of manually fixing every single Dockerfile I've ever written) do --add-host=my.host.internal.example.net=host-gateway to both run https://docs.docker.com/reference/cli/docker/container/run/#add-host *and* build https://docs.docker.com/reference/cli/docker/buildx/build/#add-host and automatically *share my local DevPI cache* with every container-based build