I've seen some repos put "mirror" in their descriptions. Like others, I wish GitHub has a way of blocking PRs. But I think, what I can do eventually is have my

I've seen some repos put "mirror" in their descriptions. Like others, I wish GitHub has a way of blocking PRs. But I think, what I can do eventually is have my version of your "Open-source, not open-contribution" paragraph. Hopefully the term will become popular and more widely recognized. Furthermore, I think it is helpful to have a public roadmap of features not implemented yet. Others (especially colleagues) might feel ownership because they were able to guess what's on your long mental to-do list and make that their "ground breaking" request.