My concern with subrepo is that I have no idea who is developing it and how much resources they have. I'd hate to learn to use a tool central to my development workflow and then have it discontinued.
Is git-subrepo good enough that it's worth the risk of using something not built into git (and the hassle of installing something extra)?
For a minute I confused this with another external tool: git-filter-repo [0]. It's recommended by the official manual as replacement for git-filter-branch [1].