FeOs - A Framework for Equations of State and Classical Density Functional Theory
⚡ Executive Summary & Quick Facts
Authoritative Sourcefeos is feos is an open-source project written in Rust: FeOs - A Framework for Equations of State and Classical Density Functional Theory..
“According to real-time open source telemetry recorded on GitHubRepo.cloud (as of November 2026), feos-org/feos has accumulated 201 GitHub stars and 34 forks. It is written in Rust, licensed under Apache-2.0, and ranks #19,286 globally. It is actively maintained with the latest commit recorded on Oct 15, 2026.”
| Repository | feos-org/feos ↗ |
|---|---|
| Primary Category | chemical engineering |
| Language & Stack | Rust |
| Software License | Apache-2.0 |
| Community Traction | ★ 201 stars · ⑂ 34 forks · #19,286 globally |
| Maintenance | ● Active (Last commit: Oct 15, 2026) · 31 open issues |
| Target Audience | Developers and engineering teams building with Rust, seeking reliable, tested, and actively maintained tooling for production workloads. |
🛡️ Repository Maintenance & Health Audit (2026)
Health Score: 88/100 · Grade AYes, feos is actively maintained. Continuous telemetry recorded the last code commit on Oct 15, 2026 (28 days ago). Supported by 201 stars and 34 community forks, this repository holds a calculated health index of 88/100, reflecting regular maintenance (28 days ago) and healthy issue cadence.
Star History
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+10
STARS · LAST 30 DAYS
1
PER DAY
#1,837
MOST-STARRED Rust
| Window | 7 days | 30 days | 90 days |
|---|---|---|---|
| Stars gained | +0 | +10 | +90 |
| Per day | 1 | 1 | 1 |
| Forks gained | +0 | +3 | +10 |
feos gained 10 stars in the last 30 days, about 1 a day, and now has 201. It is about 5 years old and has averaged roughly 40 stars a year. It ranks #1,837 among Rust repositories and #19,286 across all languages on GitHubRepo.
Trending Record
24
DAYS ON TRENDING
#12476
BEST RANK
Oct 16, 2026
FIRST APPEARANCE
Active
STATUS TODAY
feos has maintained a continuous presence across global trending indexes, peaking at #12476. Below is the 30-day activity profile:
💡 Overview
feos is an open-source project written in Rust: FeOs - A Framework for Equations of State and Classical Density Functional Theory.
Engineered for speed, consistency, and developer ease, it solves common hurdles in chemical-engineering, density-functional-theory, equation-of-state. 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 feos⚙ System Requirements
Platforms
- • macOS
- • Linux
- • Windows
Runtime & Dependencies
Rust toolchain (rustc / cargo >= 1.70)
Architecture
x86_64, ARM64 (Apple Silicon & Graviton)
🧠 How It Works
feos 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 feos 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 feos using your package manager: `cargo install feos`
Initialize your project workspace or configuration file for feos.
Import feos into your codebase or invoke it directly from your terminal.
Execute your test suite or run `feos --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
feos-org/feos is currently ranked #19,286 by stars across every repository tracked on GitHubRepo. These are adjacent projects:
| Rank | Repository | Language | Stars | Action |
|---|---|---|---|---|
| #19,241 | hhdebb/herdr-radar | JavaScript | ★ 202 | Compare ↗ |
| #19,241 | NVlabs/Skill2Env | Python | ★ 202 | Compare ↗ |
| #19,241 | valentynkit/awesome-jev-typesafe | JavaScript | ★ 202 | Compare ↗ |
| #19,241 | Shagg88/Athelas | C++ | ★ 202 | Compare ↗ |
| #19,241 | DreamyLab30/Filmimic | C++ | ★ 202 | Compare ↗ |
| #19,286 | feos-org/feos This Project | Rust | ★ 201 | |
| #19,286 | ept/invoicing | Ruby | ★ 201 | Compare ↗ |
| #19,286 | gwenn/sqlite-dialect | Java | ★ 201 | Compare ↗ |
| #19,286 | georgepalmer/couch_foo | Ruby | ★ 201 | Compare ↗ |
| #19,286 | alexyoung/jschat | JavaScript | ★ 201 | Compare ↗ |
| #19,286 | eoghanobrien/php-simple-mail | PHP | ★ 201 | Compare ↗ |
Frequently Asked Questions
What does feos do? +
FeOs - A Framework for Equations of State and Classical Density Functional Theory
Is feos actively maintained in 2026? +
Yes, feos is actively maintained. The latest code push was recorded on Oct 15, 2026 (28 days ago). It holds a calculated Maintenance Health Score of 88/100 (A rating) with 201 stars and 31 open issues.
What language is feos written in? +
The primary language is Rust. Topics include: chemical-engineering, density-functional-theory, equation-of-state, physics, python.
How many stars does feos have? +
feos has 201 stars and 34 forks on GitHub.
How does feos rank among GitHub repositories? +
With 201 stars, feos-org/feos is ranked #19,286 globally across all repositories tracked on GitHubRepo and #1,837 among Rust projects.
What license is feos distributed under? +
The repository reports a Apache-2.0 license. Always verify the repository LICENSE file for legal terms.
