paritytech/substrate vs zellij-org/zellij
Both showing Healthy signals — pick on fit, not health
As of June 2026, substrate and zellij both show healthy maintenance signals. substrate last saw a commit 2 years ago with 48+ active contributors, while zellij last saw a commit 1 month ago with 19+ active contributors. substrate is Apache-2.0-licensed while zellij is MIT-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.
paritytech/substrate →
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 3y ago
- ✓48+ active contributors
- ✓Distributed ownership (top contributor 8% of recent commits)
- ✓Apache-2.0 licensed
- ✓CI configured
- ✓Tests present
Computed from maintenance signals — commit recency, contributor breadth, bus factor, license, CI, tests
zellij-org/zellij →
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 66% of recent commits
- ✓Last commit today
- ✓19 active contributors
- ✓MIT licensed
- ✓CI configured
- ✓Tests present
Computed from maintenance signals — commit recency, contributor breadth, bus factor, license, CI, tests
Signal-by-signal breakdown
| substrate | zellij | |
|---|---|---|
| Stars | 8,419 | 32,285 |
| Last commit | 2y ago | 1mo ago |
| License | Apache-2.0 | MIT |
| Open issues | 627 | 1,681 |
| Has tests | ✓ | ✓ |
| Has CI | ✓ | ✓ |
| Test coverage | 17% | 92% |
| Dependency CVEs | No CVEs | No CVEs |
| Architecture grade | — | — |
| Cycles | — | — |
| Bottom-line | Healthy signals | Healthy signals |
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