[WorldMaker]

Mutable names should be branches, in my opinion, but not because I think tags are only for releases. I will absolutely use local-only "light weight" tags to name immutable points in time that look nothing like releases (and try not to push them accidentally; this is something that I think git's UI could be better about, it's an expected pattern which is why `git push --tags` or `git push --follow-tags` is a separate action by default from normal push, but `git push --tags` which is mostly all-or-none is much more convenient than patterns that push individual, specific tags). I just feel strongly if it is a mutable reference point it needs to be a branch.

Branches are so cheap in git that there's little to no reason to not use a million branches to name every step in a process if you need to, and yeah if you need a long-term name for a specific commit local-only lightweight tags are handy for that. (I find lightweight versus annotated an often easy enough distinction between tags intended for local development and tags intended for release markers. This also seems to be intentional in git UX because of the way `git describe` by default skips lightweight tags.)