I think this is a good idea. I’ve already benefited from having sommelier-core use the official PR flow; we found an important issue with my PR.
Specifically; +1 for adopting the homeishome launcher into snapcraft. Very useful tool to fix annoying applications.
I do want to be careful to not include too many launchers so our workload doesn’t increase too much. In case of the homeishome launcher, I don’t think this is a big issue because not much is expected to change in that launcher.