mgba-emu/mgba
What happens to a stranger's pull request here, in the Porchlamp snapshot of 17 October 2026.
Outside pull requests to mgba-emu/mgba got a first human reply in a median of 1.5 hours (10 pull requests, 19 April to 16 October 2026); 21% got none within 14 days. It ranks 1,347 of 3,219 overall. For first-time contributors it ranks 735 of 1,525 (the top 49%).
| Rank | 1,347 of 3,219 |
|---|---|
| Score | 52.50 |
| Tier | C |
| Median first reply | 1.5 hours |
| 14-day no-reply share | 21% |
| First-timer rank | 735 of 1,525 |
| Ecosystem | C and C++ |
| Window | 19 April to 16 October 2026 |
Composite
- Rank
- 1,347 of 3,219
- Score
- 52.50
- Tier
- C
- Coverage
- 89% · Ceiling A
- Quadrant
- Nursery
Coordinates: leverage 40.9 (coverage 100%), friction 35.6 (coverage 82%)
Five pillars
| Pillar | Score | Coverage |
|---|---|---|
| Responsiveness | 79.4 | 75% |
| Criticality | 47.2 | 100% |
| Governance | 50.5 | 100% |
| Rigor | 23.8 | 100% |
| Accessibility | 47.9 | 70% |
The measured parameters
Responsiveness
| Parameter | Value | Score | Count | Window | Source |
|---|---|---|---|---|---|
| Decision Rate (90d)Share of outside pull requests that were merged or closed within 90 days. | Not shown: Insufficient sample size | ||||
| PR Ghost Rate (14d)Share of outside pull requests with no maintainer response, merge or close within 14 days. | 21.4% | 57.1 | 28 | 20 April to 17 October 2026 | primaryraw/pr_window/mgba-emu__mgba.json |
| First-timer Merge RateShare of first-time outside authors' decided pull requests that were merged. | 50.0% | 62.5 | 10 | — | primaryraw/author_history/mgba-emu__mgba.json |
| Time to First ResponseMedian hours from an outside pull request opening to its first substantive human reply. | 1.5 hours (0.1 days) | 100.0 | 10 | 19 April to 16 October 2026 | primaryraw/pr_window/mgba-emu__mgba.json |
| Time to Merge (p90)Hours within which 90% of merged outside pull requests were merged. | 89.0 hours (3.7 days) | 84.6 | 14 | 19 April to 16 October 2026 | primaryraw/pr_window/mgba-emu__mgba.json |
Criticality
| Parameter | Value | Score | Count | Window | Source |
|---|---|---|---|---|---|
| DependentsPackages in the registry that depend on this project, counted once each. | Not shown: Not applicable | ||||
| Monthly DownloadsDownloads from the package registry in a month. | Not shown: Not applicable | ||||
| OpenSSF CriticalityOpenSSF criticality score from 0 to 1, computed from the project's public activity signals. | 0.4724 | 47.2 | — | — | proxy:no_dependents_signalraw/github_meta/mgba-emu__mgba.json |
Governance
| Parameter | Value | Score | Count | Window | Source |
|---|---|---|---|---|---|
| Elephant FactorThe fewest organisations that account for half of the last year's commits. | 1 | 25.0 | 278 | — | primaryraw/commits_365d/mgba-emu__mgba.json |
| Legal IP RegimeThe contributor licence regime: DCO, none, a foundation CLA or a corporate CLA. | No CLA or sign-off found | 85.0 | — | — | primaryraw/governance/mgba-emu__mgba.json |
| Promotion LadderHow openly a contributor can become a maintainer, from closed to verified. | No written path to becoming a maintainer | 40.0 | — | — | primaryraw/governance/mgba-emu__mgba.json |
Rigor
| Parameter | Value | Score | Count | Window | Source |
|---|---|---|---|---|---|
| AI Policy PostureWhether the project has a written policy on AI-assisted contributions. | No written AI policy | 40.0 | — | — | primaryraw/governance/mgba-emu__mgba.json |
| Pipeline DefensesHow well the project's build and review pipeline defends against bad changes, 0 to 100. | 22.5 | 22.5 | — | — | primaryraw/scorecard/mgba-emu__mgba.json |
| Substantive Review RateShare of decided pull requests that received a substantive review. | 7.4% | 9.3 | 27 | 19 April to 16 October 2026 | primaryraw/pr_window/mgba-emu__mgba.json |
Accessibility
| Parameter | Value | Score | Count | Window | Source |
|---|---|---|---|---|---|
| Developer ExperienceDeveloper experience, 0 to 100: half CI run time, half setup signals. | Not shown: Insufficient sample size | ||||
| Newcomer ConversionShare of first-time authors whose first pull request merged within 180 days. | 42.9% | 85.7 | 7 | — | primaryraw/author_history/mgba-emu__mgba.json |
| Newcomer Issue SupplyOpen, unassigned, up-to-date issues marked for newcomers. | 1 | 10.0 | — | — | primaryraw/gfi/mgba-emu__mgba.json |
| Newcomer Return RateShare of those merged first-time authors who sent a second pull request within 90 days. | Not shown: Insufficient sample size | ||||
Persona view
| Persona | Rank | Score | Tier | Status |
|---|---|---|---|---|
| Balanced | 1,347 of 3,219 | 52.50 | C | Rated |
| First-timer | 735 of 1,525 | 56.82 | B | Rated |
| Career capital | This repository's production-criticality signal is not yet high enough for career-capital ranking. | |||
| Senior systems | Fewer than 3 organizations account for most commits (not multi-vendor). | |||
| AI-assisted | 2,437 of 3,696 | 46.01 | C | Rated |
Integrity
- Snapshot
- 2026-10-17
- Raw hash
- f9ba87b3e5cb30a71f80536772d0713c64175048074575378b45d74d07ba1e56
No suspicion flags on this repository.
The full record is in data/2026-10-17/repos/f2.json, under the key mgba-emu/mgba.
How every number is measured: Porchlamp methodology.
Open an issue about this record and say what looks wrong.
Porchlamp (2026). mgba-emu/mgba. Snapshot 2026-10-17. https://porchlamp.org/projects/mgba-emu/mgba/. CC BY 4.0.
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