dandavison/delta vs paritytech/substrate
Both showing Healthy signals — pick on fit, not health
As of June 2026, delta and substrate both show healthy maintenance signals. delta last saw a commit 3 months ago with 20+ active contributors, while substrate last saw a commit 2 years ago with 48+ active contributors. delta is MIT-licensed while substrate 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.
dandavison/delta →
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.
- ✓Last commit 6w ago
- ✓20 active contributors
- ✓Distributed ownership (top contributor 42% of recent commits)
- ✓MIT licensed
- ✓CI configured
- ✓Tests present
Computed from maintenance signals — commit recency, contributor breadth, bus factor, license, CI, tests
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
Signal-by-signal breakdown
| delta | substrate | |
|---|---|---|
| Stars | 30,657 | 8,419 |
| Last commit | 3mo ago | 2y ago |
| License | MIT | Apache-2.0 |
| Open issues | 376 | 627 |
| Has tests | ✓ | ✓ |
| Has CI | ✓ | ✓ |
| Test coverage | 13% | 17% |
| Dependency CVEs | No CVEs | No CVEs |
| Architecture grade | — | — |
| Cycles | — | — |
| Bottom-line | Healthy signals | Healthy signals |
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