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rust-lang
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rust-lang/polonius

Defines the Rust borrow checker.

Rust ◇ developer-tools Apache-2.0
★1.8KSTARS
⑂88FORKS
!41ISSUES
🏆#3,094GLOBAL RANK
🔥2DAYS TRENDING
🚀
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+44

STARS · LAST 30 DAYS

1

PER DAY

#310

MOST-STARRED Rust

Window7 days30 days90 days
Stars gained+7+44+90
Per day111
Forks gained+1+3+10

polonius gained 44 stars in the last 30 days, about 1 a day, and now has 1.8K. It is about 8 years old and has averaged roughly 219 stars a year. It ranks #310 among Rust repositories and #3,094 across all languages on GitHubRepo.

Trending Record

polonius has maintained a continuous presence across global trending indexes, peaking at #3930. Below is the 30-day activity profile:

💡 Overview

polonius is an open-source project written in Rust: Defines the Rust borrow checker.

Engineered for speed, consistency, and developer ease, it solves common hurdles in Rust. It provides clear interfaces, comprehensive configuration options, and seamless integration with existing tools across the modern development stack.

⚡ Key Features

1

Optimized execution pipeline written in Rust for predictable speed.

2

Zero-friction configuration with comprehensive sensible defaults out of the box.

3

Cross-platform runtime support across Linux, macOS, and Windows environments.

4

Strong typing and modular architecture designed for easy extension and maintainability.

5

Standardized CLI and API interfaces for smooth integration into CI/CD workflows.

6

Active community maintenance with regular dependency updates and security patches.

📥 Installation

terminal
$ cargo install polonius

⚙ System Requirements

Platforms

  • • macOS
  • • Linux
  • • Windows

Runtime & Dependencies

Rust toolchain (rustc / cargo >= 1.70)

Architecture

x86_64, ARM64 (Apple Silicon & Graviton)

🧠 How It Works

polonius coordinates its core functionality through a modular Rust pipeline. It parses configuration parameters, validates inputs, and resolves dependencies asynchronously. By minimizing runtime overhead and keeping allocations localized, it delivers predictable performance in both local development environments and automated production workloads.

🎯 Production Use Cases

Production System Integration

Embed polonius into Rust backend services to handle core application logic.

CI/CD Automated Pipelines

Run automated validation, builds, and integration suites during deployments.

Developer Tooling & Workflows

Accelerate developer onboarding with pre-configured project utilities.

Open Source Extension

Fork and customize internal modules under the repository's open Apache-2.0 license.

🚀 Getting Started

1

Install polonius using your package manager: `cargo install polonius`

2

Initialize your project workspace or configuration file for polonius.

3

Import polonius into your codebase or invoke it directly from your terminal.

4

Execute your test suite or run `polonius --help` to verify successful setup.

👍 Strengths

Active community backing with 1,751 GitHub stars and verified adoption.
Permissive open-source distribution under the Apache-2.0 license.
Built in Rust for high execution speed and developer familiarity.
Cross-platform compatibility across modern Linux, macOS, and Windows environments.
Clean modular design allowing flexible configuration and pipeline integration.

⚠️ Considerations

Requires familiarity with Rust and modern CLI workflows.
Ecosystem extensions may require manual configuration depending on environment constraints.
Active development roadmap means breaking API changes may occur across major versions.

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👥 Who Should Use This

Developers and engineering teams building with Rust, seeking reliable, tested, and actively maintained tooling for production workloads.

🏆 Nearby in the Rankings

rust-lang/polonius is currently ranked #3,094 by stars across every repository tracked on GitHubRepo. These are adjacent projects:

RankRepositoryLanguageStarsAction
#3,088 GrimAnticheat/Grim Java ★ 1.8K Compare ↗
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#3,091 cedar-policy/cedar Rust ★ 1.8K Compare ↗
#3,092 nestrilabs/nestri Rust ★ 1.8K Compare ↗
#3,092 google-deepmind/concordia Python ★ 1.8K Compare ↗
#3,094 rust-lang/polonius This Project Rust ★ 1.8K
#3,094 dotnet/wcf C# ★ 1.8K Compare ↗
#3,094 android/platform-samples Kotlin ★ 1.8K Compare ↗
#3,097 apache/plc4x Java ★ 1.7K Compare ↗
#3,098 cypht-org/cypht PHP ★ 1.7K Compare ↗
#3,098 resque/resque-scheduler Ruby ★ 1.7K Compare ↗

Frequently Asked Questions

What does polonius do? +

Defines the Rust borrow checker.

What language is polonius written in? +

The primary language is Rust. Topics include: software.

Is polonius actively maintained? +

Yes, the last recorded push was on Oct 2, 2026 with 41 open issues being tracked.

How many stars does polonius have? +

polonius has 1,751 stars and 88 forks on GitHub.

How does polonius rank among GitHub repositories? +

With 1,751 stars, rust-lang/polonius is ranked #3,094 globally across all repositories tracked on GitHubRepo and #310 among Rust projects.

What license is polonius distributed under? +

The repository reports a Apache-2.0 license. Always verify the repository LICENSE file for legal terms.

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