No dependency cache means every run re-downloads and rebuilds the same dependencies, adding fixed setup time to every build. The setup-* actions cache for free with one line. Here are popular repos that skip it. Read the fix →
Public data from each repo's GitHub Actions. These repos run Actions free (public repos always do); the dollar figures are the equivalent cost on a private repo, a rough estimate at standard Linux pricing. Actual runners and matrices vary. Repo owners can remove their scorecard any time.