The parallel, concurrent, and functional programming language for scalable software development
⚡ Executive Summary & Quick Facts
Authoritative Sourcepen is pen is an open-source project written in Rust: The parallel, concurrent, and functional programming language for scalable software development..
| Repository | pen-lang/pen ↗ |
|---|---|
| Primary Category | concurrency |
| Language & Stack | Rust |
| Software License | Apache-2.0 |
| Community Traction | ★ 474 stars · ⑂ 8 forks · #10,116 globally |
| Maintenance | ● Active (Last commit: Oct 21, 2026) · 40 open issues |
| Target Audience | Developers and engineering teams building with Rust, seeking reliable, tested, and actively maintained tooling for production workloads. |
Star History
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+12
STARS · LAST 30 DAYS
1
PER DAY
#997
MOST-STARRED Rust
| Window | 7 days | 30 days | 90 days |
|---|---|---|---|
| Stars gained | +7 | +12 | +90 |
| Per day | 1 | 1 | 1 |
| Forks gained | +1 | +3 | +10 |
pen gained 12 stars in the last 30 days, about 1 a day, and now has 474. It is about 5 years old and has averaged roughly 95 stars a year. It ranks #997 among Rust repositories and #10,116 across all languages on GitHubRepo.
Trending Record
4
DAYS ON TRENDING
#10711
BEST RANK
Oct 21, 2026
FIRST APPEARANCE
Active
STATUS TODAY
pen has maintained a continuous presence across global trending indexes, peaking at #10711. Below is the 30-day activity profile:
💡 Overview
pen is an open-source project written in Rust: The parallel, concurrent, and functional programming language for scalable software development.
Engineered for speed, consistency, and developer ease, it solves common hurdles in concurrency, functional, go. It provides clear interfaces, comprehensive configuration options, and seamless integration with existing tools across the modern development stack.
⚡ Key Features
Optimized execution pipeline written in Rust for predictable speed.
Zero-friction configuration with comprehensive sensible defaults out of the box.
Cross-platform runtime support across Linux, macOS, and Windows environments.
Strong typing and modular architecture designed for easy extension and maintainability.
Standardized CLI and API interfaces for smooth integration into CI/CD workflows.
Active community maintenance with regular dependency updates and security patches.
📥 Installation
$ cargo install pen⚙ System Requirements
Platforms
- • macOS
- • Linux
- • Windows
Runtime & Dependencies
Rust toolchain (rustc / cargo >= 1.70)
Architecture
x86_64, ARM64 (Apple Silicon & Graviton)
🧠 How It Works
pen 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 pen 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
Install pen using your package manager: `cargo install pen`
Initialize your project workspace or configuration file for pen.
Import pen into your codebase or invoke it directly from your terminal.
Execute your test suite or run `pen --help` to verify successful setup.
👍 Strengths
⚠️ Considerations
⇄ Alternatives & Direct Competitors
👥 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
pen-lang/pen is currently ranked #10,116 by stars across every repository tracked on GitHubRepo. These are adjacent projects:
| Rank | Repository | Language | Stars | Action |
|---|---|---|---|---|
| #10,103 | fast4x/RiPlay | Kotlin | ★ 475 | Compare ↗ |
| #10,103 | The-AI-Republic/pi-dash | TypeScript | ★ 475 | Compare ↗ |
| #10,103 | autonomous-ai/lampOS | Python | ★ 475 | Compare ↗ |
| #10,103 | dingminhua/dsh-connect-workbuddy | TypeScript | ★ 475 | Compare ↗ |
| #10,103 | shihabal3amri/DiAuto | Kotlin | ★ 475 | Compare ↗ |
| #10,116 | pen-lang/pen This Project | Rust | ★ 474 | |
| #10,116 | Growstuff/growstuff | Ruby | ★ 474 | Compare ↗ |
| #10,116 | w3c/webref | JavaScript | ★ 474 | Compare ↗ |
| #10,116 | NLnetLabs/domain | Rust | ★ 474 | Compare ↗ |
| #10,116 | ManukMinasyan/vue-functional-calendar | JavaScript | ★ 474 | Compare ↗ |
| #10,116 | rr-wfm/MSBuild.Sdk.SqlProj | C# | ★ 474 | Compare ↗ |
Frequently Asked Questions
What does pen do? +
The parallel, concurrent, and functional programming language for scalable software development
What language is pen written in? +
The primary language is Rust. Topics include: concurrency, functional, go, language, programming-language.
Is pen actively maintained? +
Yes, the last recorded push was on Oct 21, 2026 with 40 open issues being tracked.
How many stars does pen have? +
pen has 474 stars and 8 forks on GitHub.
How does pen rank among GitHub repositories? +
With 474 stars, pen-lang/pen is ranked #10,116 globally across all repositories tracked on GitHubRepo and #997 among Rust projects.
What license is pen distributed under? +
The repository reports a Apache-2.0 license. Always verify the repository LICENSE file for legal terms.
