Earlier quoted context omitted.
More than likely, this is a red flag, not an achievement; or at least one would hope it is.
Only if you can't imagine working on a project by yourself...
I set up build+test via GH actions and have GitHub run them on PR's. And make all changes through PR's.
This not only prevents "forgot to run tests" type accidents during regular development, it also helps me when I come back to a hobby project months later, and it lets me confidently do small changes (think version bumps) directly through GitHub's editor, which saves a bunch of time.
And when, against the odds, I actually do get a contribution, the infra is already there and it really cuts down my turnaround time to get it merged, bump the version and deploy the release.
Of course if a single direct push yields you the badge then I guess pretty much every solo dev gets it sooner or later. But that indirectly turns it back into a good badge, right? "Independent enough to have a life outside a standardized corporate process"?