I'd used GitHub Actions for at least 6-12 months before even realising <thing>/<thing> was not something that got parsed by the action (like a namespace and met

I'd used GitHub Actions for at least 6-12 months before even realising <thing>/<thing> was not something that got parsed by the action (like a namespace and method/function), but was simply a reference to a github user name and repo. That whole object should really have been called a 'repo', because that's what it is, and that would alert users to use extreme caution whenever using one that wasn't created by themselves.