A bridge interface between Python and Objective-C.
C-Rank Grade: B (Solid) - 56/100
External PR Merge Rate: 86%
Response Time: 6d
First Timer Success: 100%
beeware/rubicon-objc has a recorded first-timer success rate of 100.0%. Repositories ranked B typically provide actionable feedback during code reviews and actively nurture new community contributors.
Maintainers in beeware/rubicon-objc respond to incoming external pull requests in approximately 135.0 hours on average. Keeping PRs focused on single tasks and ensuring tests pass helps maintainers review faster.
The C-Rank™ system evaluates GitHub projects on a 0–100 scale using real data: PR merge rates, review turnaround time, active maintainer presence, and first-time contributor success. A score of 55.6 places beeware/rubicon-objc in the B tier.
The external contributor pull request merge rate for beeware/rubicon-objc is 85.7%, based on public PR activity from non-core contributors.
beeware/rubicon-objc currently has 1 active issue(s) tagged with beginner-friendly labels like "good first issue", "beginner", or "up-for-grabs".
Strict review standards in beeware/rubicon-objc. Ensure PR scope matches issue requirements closely before requesting review.
Discussions in beeware/rubicon-objc focus heavily on practical implementation feedback, code formatting standards, and issue reproduction details.
Unlinked PRs without issue context and changes that fail automated test suites face the highest review friction.
Average Response Latency
Tracks hours until a maintainer leaves a review, comment, or PR response.
External Acceptance Rate
Percentage of community pull requests successfully merged into main.
First PR Conversion
Rate at which developers submitting their first repository PR succeed.
Show contributors that your repository actively reviews and merges external pull requests.
[](https://getmerged.abhishekco.de/beeware/rubicon-objc?utm_source=github&utm_medium=badge)
Historical health & responsiveness evolution
External PR acceptance
First PR success rate
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90% receive response in
Maintainer review activity heatmap & prime window prediction
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Maintainers are most responsive around 00:00 UTC (00:00 UTC in your timezone). Recommended submission window is Wednesday - Friday from 21:00 to 01:00 UTC (21:00 - 01:00 UTC local).
Maintainer Strategy: Maintainer Sweet Spot: PRs under 150 lines merge in ~88 hours (96% approval). Large PRs (>500 lines) take ~648 hours (39% approval). Keep your diff compact for rapid review.
What is the problem or limitation you are having? The current CI matrix doesn't perform any testing on iOS. This generally isn't a problem, until issues like #786 emerge. Describe the solution you'd like The CI matrix should run the Rubicon ObjC test suite on iOS. The easiest approach will be to create a Briefcase testbed project that includes the Rubicon sources and tests. The Toga testbed project could be a useful model to follow; however, Toga's testbed is a lot more complex than is needed here, because we don't need to have any visual aspect to the test suite - we just need to start the standard pytest suite. Describe alternatives you've considered Use cibuildwheel to run the test suite. The problem with this approach is that Rubicon isn't a binary wheel, so the wheel that is built by cibuildwheel won't actually be used or released. Download and use the iOS testbed directly. This would work, but the CI rule would need to be manually updated every time there is a new support packag
What is the problem or limitation you are having? Rubicon is now generating coverage reports. There is not 100% branch coverage currently. Describe the solution you'd like We'd like to see Rubicon at 100% branch coverage. Describe alternatives you've considered None. Additional context This is a placeholder. Any PR that improves coverage should reference this issue, but should not close it until 100% branch coverage is achieved. A single PR to resolve all coverage is not necessary; it can be done in pieces. Any improvement will be accepted.
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When evaluating whether to contribute to beeware/rubicon-objc, response velocity and maintainer engagement are crucial. GetMerged continuously tracks pull request trajectories, first-comment latency, and code review rounds to help developers avoid submitting pull requests to backlogged repositories.
Currently, maintainers of beeware/rubicon-objc acknowledge new external contributions in approximately 5 days+. Out of all submitted pull requests from non-core authors in the last 180-day window, 85.7% were successfully merged into the primary branch.
beeware/rubicon-objc has a recorded first-timer success rate of 100.0%. Repositories ranked Solid typically provide actionable feedback during code reviews and actively nurture new community contributors.
The initial maintainer response time averages ~5 days+. Keeping PRs scoped to single concerns and ensuring CI checks succeed will optimize review turnaround.
The C-Rank™ index scores repositories on a 0 to 100 scale using an objective formula: external PR merge rates, initial response speed, active maintainer count, and first-time contributor retention. A score of 55.6 places beeware/rubicon-objc in the Solid tier.
The external pull request merge rate is 85.7%. GetMerged isolates non-core community contributions so external developers get an accurate benchmark of PR acceptance probability.
Yes, beeware/rubicon-objc currently has 1 active issue(s) tagged with beginner-friendly labels. You can inspect these directly from the repository issues tab.
All metrics displayed for beeware/rubicon-objc are automatically retrieved via the public GitHub API and recalculated daily. Insider pull requests submitted by repository owners or organization members are excluded from merge rate calculations to preserve objective external contributor statistics.