It’s easier to make the rules than game them; ultimately you’re the arbiter, so once you recognize slop, create a new rule that filters it and nothing legitimate.

“Must have six months of active development” beats every slop I’ve seen yet (and we’ll see in six months, but vibe coding has already existed for longer). “Must appear in a popular app (by my judgement), be vouched by someone I trust, or exist before 2024” would probably accept most legitimate “awesome” repos.