A reactive notebook for Python — run reproducible experiments, query with SQL, execute as a script, deploy as an app, and version with git. Stored as pure Python. All in a modern, AI-native editor.

Virtual Machine for the Web

A Rust compiler front-end for IDEs

R formatter and language server

Run pytest against markdown files/docstrings.

`$ mdsh` # a markdown shell pre-processor

Run `black` on python code blocks in documentation files

action for executing all python code blocks in markdown file

Automatically execute code blocks within a Markdown file and update the output in-place

Thinking notebook and Markdown editor.

Lints Python code blocks in Markdown files using flake8

Modern desktop RSS reader built with Electron, React, and Fluent UI

Free news feeds reader

Feed reader (podcast player and also Gemini protocol client) which supports RSS/ATOM/JSON and many web-based feed services.

Optimized library for driving parallel eink displays with the ESP32

Docker Containers for Bioconductor

Minimal Docker images for R

Markdown Linter and Formatter written in Rust

Modern Markdown formatter with smart typography, line wrapping, and tag support (Python reference implementation)

An extremely fast Python type checker and language server, written in Rust.

An opinionated list of awesome Python frameworks, libraries, software and resources.

pylint plugin that forbids gradual typing

A tool (and pre-commit hook) to automatically upgrade syntax for newer versions of the language.

A new browser, not owned by Atlassian.

Lightpanda: the headless browser designed for AI and automation

MongoDB-compatible database engine for cloud-native and open-source workloads. Built for scalability, performance, and developer productivity.

A fast offline, boundary aware reverse geocoding library in python

A Beautiful & Animated Chart UI Website built on top of shadcn & recharts.

A compiler and scenario generator for the Scenic scenario description language.