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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prettier
An opinionated code formatter that enforces consistent style across every language your project speaks.
Playwright
Cross-browser end-to-end web testing and browser automation with a single API for Chromium, Firefox, and WebKit.
React Testing Library
Simple and complete React DOM testing utilities that encourage good testing practices.
jest-dom
Custom Jest matchers for asserting on the state of the DOM in your tests.
jest
Delightful JavaScript testing with zero-config setup, snapshots, mocking, and coverage
lint-staged
Run linters and formatters only against the files staged in git, so a slow full-project lint never blocks a commit.
user-event
Simulates the full sequence of real browser events so Testing Library tests behave the way an actual user does.
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.
Pydantic
Data validation and settings management using Python type hints, backed by a Rust core.
testify
The essential Go toolkit for assertions, mocks, and structured test suites.
pytest
The Python testing framework that makes writing small tests easy and scales to complex functional test suites.
DOM Testing Library
Simple, framework-agnostic DOM query utilities that test your UI the way real users interact with it.
HTTPX
A next-generation HTTP client for Python with sync, async, and HTTP/2 support
fs-extra
Drop-in replacement for Node's fs module adding copy, remove, mkdirs, and JSON helpers with native promise support.
Storybook
The industry-standard workshop for building, documenting, and testing UI components in isolation, across every major frontend framework.
Uvicorn
A lightning-fast ASGI server for Python, built on uvloop and httptools.
@codemirror/view
The DOM view layer for the CodeMirror 6 code editor, handling rendering, input, and editor chrome.
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.
CodeMirror State
Immutable document, selection, and transaction data structures for the CodeMirror code editor
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
@monaco-editor/react
Drop the Monaco code editor into any React app without touching webpack, rollup, or bundler config files.
