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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PapaParse
The fastest in-browser CSV parser for JavaScript, with streaming, Web Workers, and zero dependencies
rayon
Simple, guaranteed data-race-free work-stealing parallelism for Rust — turn sequential iterators parallel by changing one call.
parking_lot
A faster, smaller drop-in replacement for Rust's standard library Mutex, RwLock, Condvar, and Once.
ipykernel
The IPython kernel that lets Jupyter notebooks, JupyterLab, and other frontends run and interact with Python code.
IPython
A productive interactive Python shell with rich introspection, tab completion, and magic commands.
Flume
A safe, blazingly fast multi-producer, multi-consumer channel for Rust
ipywidgets
Interactive HTML widgets for Jupyter notebooks
react-papaparse
React hooks and components wrapping PapaParse for fast in-browser CSV parsing
thread_local
Per-object thread-local storage for Rust, beyond the standard library's static thread_local! macro.
nbformat
Reference implementation of the Jupyter Notebook JSON format
threads.js
A uniform spawn()/expose() API for offloading work to worker threads and web workers across Node.js, browsers, and Electron.
nbconvert
Convert Jupyter notebooks to HTML, PDF, Markdown, and more
traitlets
A pure Python library that adds typed, validated, observable attributes to your classes, and the layered configuration system built on top of them.
Yappi
A fast tracing Python profiler that is multithreading, asyncio, and gevent aware.
Shuttle
A Rust library for testing concurrent code by controlling and randomizing thread scheduling to reliably surface race conditions.