greenrobot/eventbus vs kevin-wayne/algs4
greenrobot/eventbus shows stronger signals overall
As of June 2026, eventbus shows healthier maintenance signals than algs4. eventbus rates Healthy overall while algs4 rates Mixed. eventbus last saw a commit 2 years ago with 5+ active contributors, while algs4 last saw a commit 5 months ago with 3+ active contributors. eventbus is Apache-2.0-licensed while algs4 is GPL-3.0-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.
greenrobot/eventbus →
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.
- ⚠Stale — last commit 2y ago
- ⚠Single-maintainer risk — top contributor 81% of recent commits
- ✓5 active contributors
- ✓Apache-2.0 licensed
- ✓CI configured
- ✓Tests present
Computed from maintenance signals — commit recency, contributor breadth, bus factor, license, CI, tests
kevin-wayne/algs4 →
Slowing — last commit 4mo ago
copyleft license (GPL-3.0) — review compatibility; top contributor handles 98% of recent commits…
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.
- ⚠Slowing — last commit 4mo ago
- ⚠Small team — 3 contributors active in recent commits
- ⚠Single-maintainer risk — top contributor 98% of recent commits
- ⚠GPL-3.0 is copyleft — check downstream compatibility
- ⚠No CI workflows detected
- ⚠No test directory detected
- ✓Last commit 4mo ago
- ✓3 active contributors
- ✓GPL-3.0 licensed
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
Signal-by-signal breakdown
| eventbus | algs4 | |
|---|---|---|
| Stars | 24,728 | 7,523 |
| Last commit | 2y ago | 5mo ago |
| License | Apache-2.0 | GPL-3.0 |
| Open issues | 147 | 25 |
| Has tests | ✓ | — |
| Has CI | ✓ | — |
| Test coverage | 14% | 0% |
| Dependency CVEs | No CVEs | No CVEs |
| Architecture grade | — | — |
| Cycles | — | — |
| Bottom-line | Healthy signals | Mixed signals |
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