How mature is this repository? My long quest for open-source software metrics

How mature is this repository? My long quest for open-source software metrics For years, I have been looking for a reasonable answer to a deceptively simple question: When I discover an open-source software project for the first time, how can I estimate whether it is mature, healthy and usable? Usually the first encounter is a repository on GitHub, GitLab, Codeberg or another forge. And usually we start looking at the obvious things. How many stars does it have? When was the last commit? How many contributors are there? Are there recent releases? Are issues being answered? Those indicators are useful. But none of them answers the question. A project with 20,000 GitHub stars can be abandoned. A project with 20 stars can be a boring but essential component maintained for fifteen years. A project with hundreds of commits per week may simply have a lot of automated dependency updates. A project with very few commits might actually be finished and extremely stable. Even GitHub describes…