Welcoming Repositories Index Starlark Ecosystem
Top Welcoming Open-Source Starlark Repositories
Top welcoming Starlark repositories. Scored by real 90-day external PR merge rates, maintainer review turnaround speed, and first-time contributor success.
Updated daily • Fri, 09 Oct 2026 UTC
Tracked Repos
32
>100 stars verified
Avg Merge Rate
43%
90-day external PRs
Open GFIs
12
Beginner friendly issues
Welcoming Tier
16
S & A Tier maintainers
Ranked Starlark Repositories
Showing top 32 of 32 ranked repositories
| Rank | Repository | Tier | Score | Merge Rate | Good First Issues |
|---|---|---|---|---|---|
| #1 | 🥑 Language focused docker images, minus the operating system. | A•Welcoming | 67.0 | 68.8% | - |
| #2 | Homomorphic Encryption demos | A•Welcoming | 64.7 | 90.0% | - |
| #3 | Bazel rules for Kotlin | A•Welcoming | 64.7 | 73.8% | - |
| #4 | Scala rules for Bazel | A•Welcoming | 64.0 | 64.5% | - |
| #5 | Bazel rules for running multiple commands in parallel in a single bazel invocation | A•Welcoming | 63.3 | 100.0% | - |
| #6 | High-performance Bazel rules for running Node.js tools and building JavaScript projects | A•Welcoming | 63.1 | 70.6% | - |
| #7 | More compatible Bazel rules for running Python tools and building Python projects | A•Welcoming | 62.6 | 20.0% | - |
| #8 | Bazel rules to build apps for Apple platforms. | A•Welcoming | 61.9 | 58.1% | - |
| #9 | Score project main repository | A•Welcoming | 61.2 | 59.3% | - |
| #10 | Starlark implementation of bazel rules for CUDA. | A•Welcoming | 60.2 | 54.5% | - |
| #11 | The central registry of Bazel modules for the Bzlmod external dependency system. | A•Welcoming | 58.6 | 18.0% | - |
| #12 | Run static analysis tools with Bazel | A•Welcoming | 57.7 | 47.8% | - |
| #13 | LLVM toolchain for bazel | A•Welcoming | 57.4 | 70.6% | - |
| #14 | { Correct, Fast, Usable } -- Choose three | A•Welcoming | 57.1 | 14.3% | - |
| #15 | A zero sysroot, fully hermetic C/C++ cross compilation toolchain for Bazel based on LLVM. | A•Welcoming | 56.0 | 36.4% | - |
| #16 | Rules for importing Nixpkgs packages into Bazel. | A•Welcoming | 55.8 | 47.1% | - |
| #17 | Bazel Python Rules | B•Solid | 54.7 | 15.0% | 7 |
| #18 | A Kurtosis package that deploys a private, portable, and modular Ethereum devnet | B•Solid | 53.7 | 45.5% | - |
| #19 | Bazel rules for the `tsc` compiler from http://typescriptlang.org | B•Solid | 53.4 | 100.0% | - |
| #20 | Apple support for Bazel rules | B•Solid | 52.3 | 42.9% | - |
| #21 | Bazel rules to construct images using https://github.com/GoogleContainerTools/distroless | B•Solid | 51.6 | 40.0% | - |
| #22 | Bazel rules to build Swift on Apple and Linux platforms | B•Solid | 51.4 | 47.4% | - |
| #23 | Rust rules for Bazel | B•Solid | 49.5 | 50.0% | 4 |
| #24 | Haskell rules for Bazel. | B•Solid | 44.9 | 50.0% | 1 |
| #25 | Collection of utilities and Bazel rules to aid in the development and maintenance of Swift repositories using Bazel. | B•Solid | 44.1 | 37.5% | - |
| #26 | gRPC Network Operations Interface (gNOI) defines a set of gRPC-based microservices for executing operational commands on network devices. | B•Solid | 44.1 | 33.3% | - |
| #27 | Bazel rules for creating packages of many types (zip, tar, deb, rpm, ...) | B•Solid | 42.6 | 20.0% | - |
| #28 | C++ Rules for Bazel | D•Risky | 29.9 | 0.0% | - |
| #29 | Java rules for Bazel | D•Risky | 29.9 | 0.0% | - |
| #30 | Constraint values for specifying platforms and toolchains | D•Risky | 28.1 | 0.0% | - |
| #31 | Docker image for ownCloud community edition | D•Risky | 15.7 | 0.0% | - |
| #32 | Public interface definitions of Google APIs. | D•Risky | 8.0 | 0.0% | - |
How to Get Your Starlark PR Merged
1
Check C-Rank™ First: Pick projects with S or A tiers to avoid maintainer ghosts and slow review cycles.
2
Run Local Verification: Ensure test suites and formatting linters pass before opening a pull request.
3
Submit in Maintainer Windows: Check the repository report card to submit when maintainers are most active.
Get this week's top welcoming repos + fresh Good First Issues for Starlark
Free weekly email, scoped to Starlark. No account needed - confirm once and unsubscribe anytime.
Frequently Asked Questions: Starlark Open Source
What is the most welcoming Starlark open-source repository?
The highest-ranked Starlark repository on GetMerged is currently GoogleContainerTools/distroless, with a C-Rank score of 67.0/100 and a 68.8% PR merge rate.
How can I find good first issues in Starlark?
You can browse verified beginner-friendly issues in Starlark by visiting our curated Good First Issues directory at getmerged.abhishekco.de/good-first-issue/starlark.
What makes a Starlark repository ‘Super Welcoming’ on GetMerged?
A ‘Super Welcoming’ (S-Tier) Starlark repository demonstrates an external PR merge rate above 80%, a median first response time within 24 to 48 hours, active review feedback, and clear onboarding documentation.