A simple, zero-dependencies library to parse environment variables into structs
C-Rank Grade: C (Moderate) - 32/100
External PR Merge Rate: 14%
Response Time: 11d
First Timer Success: -
caarlos0/env has a recorded first-timer success rate of 0.0%. Repositories ranked C typically provide actionable feedback during code reviews and actively nurture new community contributors.
Maintainers in caarlos0/env respond to incoming external pull requests in approximately 271.1 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 31.6 places caarlos0/env in the C tier.
The external contributor pull request merge rate for caarlos0/env is 14.3%, based on public PR activity from non-core contributors.
caarlos0/env does not currently have active "good first issue" tags indexed, but accepts external contributions through standard GitHub issue tracking.
Highly encouraging & supportive maintainers (100% positive review sentiment). Active code reviews with constructive guidance for new contributors in caarlos0/env.
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/caarlos0/env?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
Calculating local time...
Calculating local time...
Detected: UTC
Maintainers are most responsive around 12:00 UTC (12:00 UTC in your timezone). Recommended submission window is Monday - Wednesday from 10:00 to 14:00 UTC (10:00 - 14:00 UTC local).
Limited recent maintainer review activity recorded for this repository. Prediction based on heuristic baseline.
Maintainer Strategy: Maintainer Sweet Spot: PRs under 150 lines merge in ~176 hours (18% approval). Large PRs (>500 lines) take ~1301 hours (15% approval). Keep your diff compact for rapid review.
Enter your branch size and test coverage below to forecast review turnaround and get 1-click git splitting commands.
Alternative open-source projects with active maintainers in Go.
modern full-featured open source secure mail server for low-maintenance self-hosted email
Open source software factory infrastructure for advanced AI coding workflows
cliamp - Terminal music player inspired by winamp
No cached good first issues currently tracked for caarlos0/env.
Rate what actually matters after opening a pull request here.
Rate your first-hand PR experience (review speed, maintainer responsiveness, and onboarding ease) to help other contributors.
When evaluating whether to contribute to caarlos0/env, 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 caarlos0/env acknowledge new external contributions in approximately 11 days+. Out of all submitted pull requests from non-core authors in the last 180-day window, 14.3% were successfully merged into the primary branch.
caarlos0/env has a recorded first-timer success rate of 0.0%. Repositories ranked Moderate typically provide actionable feedback during code reviews and actively nurture new community contributors.
The initial maintainer response time averages ~11 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 31.6 places caarlos0/env in the Moderate tier.
The external pull request merge rate is 14.3%. GetMerged isolates non-core community contributions so external developers get an accurate benchmark of PR acceptance probability.
caarlos0/env 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 caarlos0/env 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.