Open Source Packages
Libraries, frameworks, tools, and SDKs used by the apps in this directory — scored the same way as the apps themselves.
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postcss
A CSS transformation engine that parses styles into an AST, letting JS plugins lint, prefix, and rewrite CSS — the foundation beneath Autoprefixer, Tailwind, and 200+ other tools.
typescript-eslint
The official meta-package bundling the TypeScript ESLint parser, plugin, and rule presets behind a single typed config() helper.
Motion
A hybrid JavaScript and React animation library built for 120fps gestures, springs, and layout transitions.
serde_json
The de facto standard JSON library for Rust, built on the Serde serialization framework
Requests
The elegant, human-friendly HTTP library that made Python's most-used API for talking to the web.
Marked
A fast, low-level Markdown compiler that parses CommonMark and GFM into HTML in Node.js, browsers, or the CLI.
serde
A generic framework for serializing and deserializing Rust data structures efficiently and safely.
Pydantic
Data validation and settings management using Python type hints, backed by a Rust core.
js-yaml
A fast, complete YAML 1.2 and 1.1 parser and serializer for JavaScript.
pytest
The Python testing framework that makes writing small tests easy and scales to complex functional test suites.
yaml
A definitive TypeScript parser and stringifier for YAML, supporting 1.1 and 1.2 with comment and CST access.
Tokio
The async runtime powering most of Rust's networked, concurrent, and I/O-bound applications.
Commander.js
The complete, battle-tested framework for building Node.js command-line interfaces.
HTTPX
A next-generation HTTP client for Python with sync, async, and HTTP/2 support
Uvicorn
A lightning-fast ASGI server for Python, built on uvloop and httptools.
NumPy
The fundamental N-dimensional array library powering Python's scientific computing stack.
PyYAML
A full-featured YAML parser and emitter for Python, with C-accelerated bindings
FastAPI
A modern, high-performance Python web framework for building APIs with automatic validation, serialization, and interactive docs.
python-dotenv
Load environment variables from a .env file into Python's os.environ, the standard way to keep 12-factor config out of your code
reqwest
An ergonomic, batteries-included HTTP client for Rust, with async and blocking APIs.
Oxlint
Rust-based JavaScript/TypeScript linter that runs 50-100x faster than ESLint, with zero configuration required.
tempfile
A secure, cross-platform Rust library for temporary files and directories that clean up automatically on drop.
base64
Correct, fast, and configurable base64 encoding and decoding for Rust, with pluggable alphabets and padding.
Pillow
The friendly PIL fork that adds image processing capabilities to Python
