Package management made easy

An idiomatic, lean, fast & safe pure Rust implementation of Git

Static Type Checker for Python

Optional static typing for Python

A Git-compatible VCS that is both simple and powerful

An extremely fast Python linter and code formatter, written in Rust.

A Flash Player emulator written in Rust

Gel supercharges Postgres with a modern data model, graph queries, Auth & AI solutions, and much more.

HPy: a better API for Python

DuckDB is an analytical in-process SQL database management system

Memray is a memory profiler for Python

The property-based testing library for Python

Zotero is a free, easy-to-use tool to help you collect, organize, annotate, cite, and share your research sources.

Automated testing to find logic and performance bugs in database systems

Repository for the book "Crafting Interpreters"

Rust bindings for the Python interpreter

A fast, flexible, fused effect system for Haskell

A concrete syntax tree parser and serializer library for Python that preserves many aspects of Python's abstract syntax tree

Zulip server and web application. Open-source team chat that helps teams stay productive and focused.

the champagne of beta embedded databases

Trio – a friendly Python library for async concurrency and I/O

Anki is a smart spaced repetition flashcard program

JupyterLab computational environment.

Sampling profiler for Python programs

Experimental typing stubs for NumPy

Tensors and Dynamic neural networks in Python with strong GPU acceleration

The 1.x line is frozen - features and bugfixes now happen on https://github.com/yarnpkg/berry

The library for web and native user interfaces.

A library that provides an embeddable, persistent key-value store for fast storage.