mooophy/cpp-primer vs valvesoftware/proton
Both showing Mixed signals — pick on fit, not health
As of June 2026, cpp-primer and proton both show mixed maintenance signals. cpp-primer last saw a commit 2 years ago with 30+ active contributors, while proton last saw a commit 1 month ago with 12+ active contributors. cpp-primer is CC0-1.0-licensed while proton is Other-licensed. Neither has known critical or high-severity CVEs in its dependency tree.
Informational only. RepoPilot summarises public signals at the time of analysis. Not professional, security, or legal advice.
mooophy/cpp-primer →
Stale — last commit 2y ago
last commit was 2y ago; no CI workflows detected
Has a license, tests, and CI — clean foundation to fork and modify.
Documented and popular — useful reference codebase to read through.
last commit was 2y ago; no CI workflows detected
- ⚠Stale — last commit 2y ago
- ⚠No CI workflows detected
- ✓30+ active contributors
- ✓Distributed ownership (top contributor 34% of recent commits)
- ✓CC0-1.0 licensed
- ✓Tests present
What would improve this?
- →Use as dependency Mixed → Healthy if: 1 commit in the last 365 days
- →Deploy as-is Mixed → Healthy if: 1 commit in the last 180 days
Computed from maintenance signals — commit recency, contributor breadth, bus factor, license, CI, tests
valvesoftware/proton →
Mixed signals — read the receipts
non-standard license (Other); no tests detected…
Has a license, tests, and CI — clean foundation to fork and modify.
Documented and popular — useful reference codebase to read through.
No critical CVEs, sane security posture — runnable as-is.
- ⚠Non-standard license (Other) — review terms
- ⚠No CI workflows detected
- ⚠No test directory detected
- ✓Last commit today
- ✓12 active contributors
- ✓Distributed ownership (top contributor 36% of recent commits)
- ✓Other licensed
What would improve this?
- →Use as dependency Concerns → Mixed if: clarify license terms
Computed from maintenance signals — commit recency, contributor breadth, bus factor, license, CI, tests
Signal-by-signal breakdown
| cpp-primer | proton | |
|---|---|---|
| Stars | 8,299 | 31,365 |
| Last commit | 2y ago | 1mo ago |
| License | CC0-1.0 | Other |
| Open issues | 198 | 5,073 |
| Has tests | ✓ | — |
| Has CI | — | — |
| Test coverage | 1% | 0% |
| Dependency CVEs | No CVEs | No CVEs |
| Architecture grade | — | — |
| Cycles | — | — |
| Bottom-line | Mixed signals | Mixed signals |
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