chyyuu/os_kernel_lab vs sharkdp/fd
sharkdp/fd shows stronger signals overall
As of June 2026, fd shows healthier maintenance signals than os_kernel_lab. fd rates Healthy overall while os_kernel_lab rates Mixed. os_kernel_lab last saw a commit 3 years ago with 7+ active contributors, while fd last saw a commit 1 month ago with 17+ active contributors. os_kernel_lab is GPL-3.0-licensed while fd is Apache-2.0-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.
chyyuu/os_kernel_lab →
Stale — last commit 3y ago
copyleft license (GPL-3.0) — review compatibility; last commit was 3y ago
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.
- ⚠Stale — last commit 3y ago
- ⚠Concentrated ownership — top contributor handles 64% of recent commits
- ⚠GPL-3.0 is copyleft — check downstream compatibility
- ✓7 active contributors
- ✓GPL-3.0 licensed
- ✓CI configured
- ✓Tests present
What would improve this?
- →Use as dependency Concerns → Mixed if: relicense under MIT/Apache-2.0 (rare for established libs)
Computed from maintenance signals — commit recency, contributor breadth, bus factor, license, CI, tests
sharkdp/fd →
Healthy across the board
Permissive license, no critical CVEs, actively maintained — safe to depend on.
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.
- ⚠Concentrated ownership — top contributor handles 53% of recent commits
- ✓Last commit 5d ago
- ✓17 active contributors
- ✓Apache-2.0 licensed
- ✓CI configured
- ✓Tests present
Computed from maintenance signals — commit recency, contributor breadth, bus factor, license, CI, tests
Signal-by-signal breakdown
| os_kernel_lab | fd | |
|---|---|---|
| Stars | 4,037 | 42,886 |
| Last commit | 3y ago | 1mo ago |
| License | GPL-3.0 | Apache-2.0 |
| Open issues | 9 | 182 |
| Has tests | ✓ | ✓ |
| Has CI | ✓ | ✓ |
| Test coverage | 1% | 19% |
| Dependency CVEs | No CVEs | No CVEs |
| Architecture grade | — | — |
| Cycles | — | — |
| Bottom-line | Mixed signals | Healthy signals |
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