### What needs to get done Like snapcraft, charmcraft should support the `--build-for` arg for remote build. ``` > charmcraft remote-build --build-for=s390x --launchpad-accept-public-upload Usage: charmcraft [options] command [args]... Try 'charmcraft remote-build -h' for help. Error: unrecognized arguments: --build-for=s390x ``` ### Why it needs to get done For testing a subset of charms, it would be handy if we didn't need to wait for all of them to be built remotely. The amd64 and arm64 remotes are often busy, and github has amd64 and arm64 runners. Building remotely can take an hour, vs. locally ~5 min.