Bichon – A lightweight, high-performance Rust email archiver with WebUI
C-Rank Grade: B (Solid) - 53/100
External PR Merge Rate: 48%
Response Time: 2d
First Timer Success: 25%
rustmailer/bichon has a recorded first-timer success rate of 25.0%. Repositories ranked B typically provide actionable feedback during code reviews and actively nurture new community contributors.
Maintainers in rustmailer/bichon respond to incoming external pull requests in approximately 54.4 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 52.6 places rustmailer/bichon in the B tier.
The external contributor pull request merge rate for rustmailer/bichon is 48.4%, based on public PR activity from non-core contributors.
rustmailer/bichon does not currently have active "good first issue" tags indexed, but accepts external contributions through standard GitHub issue tracking.
Balanced & professional review environment in rustmailer/bichon. Maintains strict focus on technical quality and test standards.
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/rustmailer/bichon?utm_source=github&utm_medium=badge)
Historical health & responsiveness evolution
External PR acceptance
First PR success rate
50% receive response in
90% receive response in
Maintainer review activity heatmap & prime window prediction
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Detected: UTC
Maintainers are most responsive around 09:00 UTC (09:00 UTC in your timezone). Recommended submission window is Monday - Wednesday from 06:00 to 10:00 UTC (06:00 - 10:00 UTC local).
Maintainer Strategy: Maintainer Sweet Spot: PRs under 150 lines merge in ~35 hours (60% approval). Large PRs (>500 lines) take ~261 hours (22% approval). Keep your diff compact for rapid review.
Fjall is an excellent key-value database, but I didn't fully evaluate it during the initial selection. Since switching from 0.3.7 to the 1.x series as our blob storage backend, we've received numerous issue reports—both during upgrades and in day-to-day maintenance. Many of these issues are difficult to resolve, and it feels like we've fallen into a trap where fixing one problem introduces several more. Fjall doesn't seem well-suited for email storage, especially with large messages and large attachments. To better address compatibility issues and provide a more stable, durable storage layer, I've had to implement the storage backend myself. This wasn't something I wanted to do—it's not my area of expertise—but I haven't found an ideal off-the-shelf solution. Storing each email as a single .eml file on the filesystem would mean managing millions or even hundreds of millions of files. At TB-scale, that's a huge strain on the filesystem. Systems based on Bitcask or WiscKey either l
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When evaluating whether to contribute to rustmailer/bichon, 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 rustmailer/bichon acknowledge new external contributions in approximately 2 days+. Out of all submitted pull requests from non-core authors in the last 180-day window, 48.4% were successfully merged into the primary branch.
rustmailer/bichon has a recorded first-timer success rate of 25.0%. Repositories ranked Solid typically provide actionable feedback during code reviews and actively nurture new community contributors.
The initial maintainer response time averages ~2 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 52.6 places rustmailer/bichon in the Solid tier.
The external pull request merge rate is 48.4%. GetMerged isolates non-core community contributions so external developers get an accurate benchmark of PR acceptance probability.
rustmailer/bichon does not have open beginner labels indexed currently, but external PRs for bugs and documentation improvements are evaluated via normal issue triage.
All metrics displayed for rustmailer/bichon 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.