Anders Kaseorg

Macro to generate num::FromPrimitive instances for enum that works in Rust 1.0

A normalizing interpreter for the untyped λ-calculus in 292 characters of Haskell

Source for Understanding Git cluedump slides, 2008-10-21

A library for writing CGI programs

Exact computation with constructible real numbers

Command line tool for tallying elections with the Schulze STV method

A native implementation of TLS in Javascript and tools to write crypto-based and network-heavy webapps

test

NixOS overlay for MIT Athena packages

Zulip server

Run mypy and pyright over millions of lines of code

The content behind MDN Web Docs

Auto-fix plain Functions into Arrow Functions, in all cases where conversion would result in the same behaviour

Documentation site for the Eleventy static site generator.

Test nothing, very carefully (for facebook/jest#9554)

Agda is a dependently typed programming language / interactive theorem prover.

Courseware used in the 6.004 Labs (jsim, tmsim, bsim)

No description.

The repository for high quality TypeScript type definitions.

No description.

Zoom and pan plugin for Chart.js

Prettier plugin for Astro

`eslint-plugin-import-x` is a fork of `eslint-plugin-import` that aims to provide a more performant and more lightweight version of the original plugin.

small, safe, and great commonmark (optionally gfm, mdx) compliant markdown parser

Linear optimization software

Syllabus of Irish Dances as danced at the Starry Plough in Berkeley, California

Composable transformations of Python+NumPy programs: differentiate, vectorize, JIT to GPU/TPU, and more

A utility to compile browserslist query to a RegExp to test browser useragent.

Fast, Declarative, Reproducible, and Composable Developer Environments using Nix

Validates embedded examples in OpenAPI-files

The fast, most optimal, and correct HTML & XML parsing library for Python written in Rust.

A pure Python HTML5 parser that just works. No C extensions to compile. No system dependencies to install. No complex API to learn.

A compact, no‑frills dataset of 100,000 real homepage HTML documents from popular domains. It’s meant for benchmarking / fuzzing / robustness testing of HTML parsers, link extractors, readability algorithms, ML preprocessing pipelines, etc.

All Python versions, kept up-to-date on hourly basis using Nix.

An extremely fast Python package and project manager, written in Rust.

Shrinkray is a modern multi-format test-case reducer

:lollipop: Sweet gradient icons

Create Rehype syntax trees using JSX

No description.

Lingeling SAT Solver

Python SDK, Proxy Server (AI Gateway) to call 100+ LLM APIs in OpenAI (or native) format, with cost tracking, guardrails, loadbalancing and logging. [Bedrock, Azure, OpenAI, VertexAI, Cohere, Anthropic, Sagemaker, HuggingFace, VLLM, NVIDIA NIM]

A solution for ⬆️over and ⬇️under mocking

Zulip mobile apps for Android and iOS, using Flutter.

A CakePHP Sandbox app to test and showcase misc. features and tools.

The modular and type safe schema library for validating structural data 🤖

Zulip Desktop Client

Lightweight simple translation module for node.js / express.js with dynamic json storage. Uses common __('...') syntax in app and templates.

The code coverage tool for Python

emval is a blazingly fast python email validator written in rust.

No description.

The next open source file uploader for web browsers :dog:

Expose Loader

Lossless functionality for platform-native strings.

Cross-platform Rust rewrite of the GNU coreutils

CSS Loader

FastUUID is a library which provides CPython bindings to Rust's UUID library

A unified, high-performance i18next CLI.

Dynamic Kernel Module Support

🌟 Build beautiful, accessible, high-performance documentation websites with Astro

Pluggable and configurable code formatting platform written in Rust.

Parse your code to extract translation keys/values and manage your catalog files

GDPR, WCAG 2.2 AA, and EAA compliant, self-hosted CAPTCHA alternative with PoW mechanism and advanced anti-spam filter.

No description.

The fast Rust-based web bundler with webpack-compatible API 🦀️

A Python module for communicating with the Twilio API and generating TwiML.

Stylelint rule for preventing the use of low performance animation and transition properties.

Plugins for swc, written in rust

Minimal templating on steroids.

Concatenate SVG icons and ouput an SVG font

A rollup plugin to generate .d.ts rollup files for your typescript project

Convert HTML to Markdown-formatted text.

The Dark Arts of Advanced and Unsafe Rust Programming

Lightweight static analysis for many languages. Find bug variants with patterns that look like source code.

Travel through time in your tests.

Python "Circuit Breaker" implementation

No description.

Simple responsive charts

The OWASP Cheat Sheet Series was created to provide a concise collection of high value information on specific application security topics.

Context sensitive completion for OCaml in Vim and Emacs

A small Python module for determining appropriate platform-specific dirs, e.g. a "user data dir".

Python library for the Stripe API.

Asynchronous HTTP client/server framework for asyncio and Python

Test case for django-stubs bug

Limiter, compressor, convolver, equalizer and auto volume and many other plugins for PipeWire applications

NFS client implementation for Golang

High-performance image manipulation for web servers. Includes imageflow_server, imageflow_tool, and libimageflow

Documentation for the SWC project.

A formatter for Nix code

Tool for generating dom related TypeScript and JavaScript library files

A collection of GitHub Actions to interact with Zulip.

Open-source live customer chat

No description.

Control allowance of certain jQuery functions, and suggest or autofix alternatives.

✨ 📜 🪄 ✨ HTML Template Linter and Formatter. Django - Jinja - Nunjucks - Handlebars - GoLang

Display system informations in gnome shell status bar, such as memory usage, cpu usage, network rates…

Python bindings to the Rust rpds crate for persistent data structures

No description.

Zulip's linter

Full featured HTML framework for building iOS & Android apps

macOS quarantine utilities for Node.js and Electron

🍻 A CLI workflow for the administration of macOS applications distributed as binaries

Typeface for setting text in many sizes, weights, and languages. Designed to complement Source Sans.

Monospaced font family for user interface and coding environments

Sans serif font family for user interface environments

A small Rust library that generates Gravatar image URLs.

No description.

Complete Two-Factor Authentication for Django providing the easiest integration into most Django projects.

Convert poetry projects to nix automagically [maintainer=@adisbladis]

Easy to parse data and spritesheets for emoji

Fast, disk space efficient package manager

Zulip architecture proposals

Solid Docs, rehauled. Very much in progress

Build faster websites with Astro's next-gen island architecture 🏝✨

A set of high-level abstractions for Django forms

An extremely fast Python linter, written in Rust.

The Python programming language

No description.

Bleeding edge emacs overlay [maintainer=@adisbladis]

Nix Packages collection

Reactive stylesheets for SolidJS

egui: an easy-to-use immediate mode GUI in Rust that runs on both web and native

a JSX lexer for pygments

Rust toolchains and rust-analyzer nightly for Nix [maintainer=@figsoda]

Common Table Expressions (CTE) for Django

Standards-compliant library for parsing and serializing HTML documents and fragments in Python

Status, process, and documents for ECMA-262

The Node.js website.

Rust-based platform for the Web

Consume and generate source maps.

Unified developer tools for JavaScript, TypeScript, and the web

Collection of core plugins for markdown-it-py

Reference implementation for the proposed standard library module zoneinfo

For https://bugzilla.mozilla.org/show_bug.cgi?id=1634834

Terminal information for Rust.

Playwright is a framework for Web Testing and Automation. It allows testing Chromium, Firefox and WebKit with a single API.

Effing package management! Build packages for multiple platforms (deb, rpm, etc) with great ease and sanity.

LR(1) parser generator for Rust

Manage a user environment using Nix [maintainer=@rycee]

this provides an auto-updating flake for firefox-nightly-bin from nixpkgs-mozilla

A Python Interpreter written in Rust

No description.

Python development support library (note: maintenance only)

Headless Chrome Node.js API

More than 100 powerful ESLint rules

Site Reviews is a WordPress plugin which allows you to easily collect and display reviews on your website or blog using easy-to-use blocks, shortcodes, and widgets.

OpenAPI core

jQuery JavaScript Library

PEP-484 stubs for Django

Checks the version of ES in JavaScript files with simple shell commands 🏆

A BitField extension for Django Models

Easily serialize Data Classes to and from JSON

A cat(1) clone with wings.

🌷 Run code formatter on buffer contents without moving point, using RCS patches and dynamic programming.

lesspipe - display more with less

web template editing mode for emacs

Blazing fast concurrent HashMap for Rust.

no-op statements syntactically valid only since Python X.Y

Astro documentation

No description.

the package manager for JavaScript

JavaScript syntax tree transformer, nondestructive pretty-printer, and automatic source map generator

Python dependency management and packaging made easy.

Poetry plugin to export the dependencies to various formats

Stats about code computed from 2m+ open source repositories.

A SCIM 2.0 Service Provider Implementation (for Django)

Sentry Project Setup Wizard

ASGI specification and utilities

Bridge JavaScript objects from the main process to the renderer process in Electron.

The Web framework for perfectionists with deadlines.

PGroonga is a PostgreSQL extension to use Groonga as index. PGroonga makes PostgreSQL fast full text search platform for all languages!

A task queue for django

Small, dependency-free, fast Python package to infer binary file types checking the magic numbers signature

Fast, dependency-free Go package to infer binary file types based on the magic numbers header signature

A website aiming to provide more accessible documentation for JSON schema.

Curated and opinionated list of Sphinx extensions that I found useful

No description.

A fast, secure and easy to use VPN. Built by the makers of Firefox.

A Python-embedded modeling language for convex optimization problems.

Linting for your git commit messages

Generate Nix expressions to build NPM packages

Convert the Electron API JSON file to electron.d.ts

Learn Rust with examples (Live code editor included)

Optional static typing for Python 3 and 2 (PEP 484)

The monorepo home to all of the FormatJS related libraries, most notably react-intl.

Get rgba array from color string

GitHub workflow-optimizing bot by @zulip

:electron: 🚀 The easiest way to get started with Electron

No description.

Single page application to browse AWS S3 bucket content

Type stubs for the lxml package

CLI for prettier-eslint

PEP-484 typing stubs for SQLAlchemy 1.4 and SQLAlchemy 2.0

Test project for executablebooks/MyST-Parser#411.

Type annotations for Python library providing function decorators for configurable backoff and retry

PEP-484 stubs for Pika

ESLint plugin with rules that help validate proper imports.

Review pull-requests on https://github.com/NixOS/nixpkgs

TypeScript-first schema validation with static type inference

lightweight, powerful javascript datetimepicker with no dependencies

A D-BUS abstraction layer that allows the user to manage packages in a secure way using a cross-distro, cross-architecture API.