iamkun/dayjs vs preactjs/preact
Both showing Healthy signals — pick on fit, not health
As of July 2026, dayjs and preact both show healthy maintenance signals. dayjs was committed to 3 days ago with 17+ active contributors, while preact was committed to 2 days ago with 19+ active contributors. Both use the MIT license. 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.
iamkun/dayjs
Healthy across all four use cases
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 74% of recent commits
- ✓Last commit 4d ago
- ✓17 active contributors
- ✓MIT licensed
- ✓CI configured
- ✓Tests present
Computed from maintenance signals — commit recency, contributor breadth, bus factor, license, CI, tests, cross-checked against dependency CVEs from deps.dev and OpenSSF Scorecard
preactjs/preact
Strong maintenance signals
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.
Scorecard "Token-Permissions" is 0/10; 6 cyclic import chains — pervasive coupling
- ⚠Concentrated ownership — top contributor handles 58% of recent commits
- ✓Used by 2 trusted projects: remix-run/remix, withastro/astro
- ✓Last commit today
- ✓19 active contributors
- ✓MIT licensed
- ✓CI configured
- ✓Tests present
What would improve this?
- •Deploy as-is Mixed to Healthy if: bring "Token-Permissions" to ≥3/10 (see scorecard report)
Computed from maintenance signals — commit recency, contributor breadth, bus factor, license, CI, tests, cross-checked against dependency CVEs from deps.dev and OpenSSF Scorecard
Signal-by-signal breakdown
| dayjs | preact | |
|---|---|---|
| Stars | 48,666 | 38,729 |
| Last commit | 3d ago | 2d ago |
| License | MIT | MIT |
| Open issues | 1,280 | 153 |
| Has tests | ✓ | ✓ |
| Has CI | ✓ | ✓ |
| Test coverage | 43% | 100% |
| Dependency CVEs | No CVEs | No CVEs |
| Architecture grade | — | C |
| Cycles | — | 6 |
| Bottom-line | Healthy signals | Healthy signals |
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