kevin-wayne/algs4 vs lmax-exchange/disruptor
Both showing Mixed signals — pick on fit, not health
As of September 2026, algs4 and disruptor both show mixed maintenance signals. algs4 last saw a commit 8 months ago with 3+ active contributors, while disruptor last saw a commit 1 year ago with 14+ active contributors. algs4 is GPL-3.0-licensed while disruptor 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.
kevin-wayne/algs4
Slowing — last commit 4mo ago
copyleft license (GPL-3.0) — review compatibility; top contributor handles 98% of recent commits…
No blocking repository signals were found — inspect the evidence before forking.
Documented and popular — useful reference codebase to read through.
CI evidence incomplete; dependency CVE scan unavailable
- ⚠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
- ✓Last commit 4mo ago
- ✓3 active contributors
- ✓GPL-3.0 licensed
What would improve this?
- •Use as dependency Concerns to 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
lmax-exchange/disruptor
Stale — last commit 1y ago
last commit was 1y ago; dependency CVE scan unavailable
No blocking repository signals were found — inspect the evidence before forking.
Documented and popular — useful reference codebase to read through.
last commit was 1y ago; dependency CVE scan unavailable
- ⚠Stale — last commit 1y ago
- ⚠Concentrated ownership — top contributor handles 61% of recent commits
- ✓14 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
| algs4 | disruptor | |
|---|---|---|
| Stars | 7,523 | 18,326 |
| Last commit | 8mo ago | 1y ago |
| License | GPL-3.0 | Apache-2.0 |
| Open issues | 25 | 17 |
| Has tests | Unknown | ✓ |
| Has CI | Unknown | ✓ |
| Test coverage | 0% | 41% |
| Dependency CVEs | No CVEs | No CVEs |
| Architecture grade | — | — |
| Cycles | — | — |
| Bottom-line | Mixed signals | Mixed signals |
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