IPython kernel integration plugin for OpenCode - execute Python code with persistent kernels, rich output, and helper prelude

File upload widget specifically for Pyodide kernels running in JupyterLite. Uploaded files are not loaded into memory but mounted as read-only files in a new WORKERFS.

Fast ICC colour engine for JavaScript — WASM-SIMD LUT kernels (~210 MPx/s x86, ~270 MPx/s Apple Silicon), full f64 accuracy pipeline, portable LUT JSON, TIFF visual editing workflow. Outperforms lcms-wasm in 3 of 4 image workflows. ICC v2/v4, all intents,

JupyterLab - Code Console

A comprehensive TypeScript SDK for JupyterHub - manage users, servers, files, kernels, and execute notebooks

Columnar WASM dataframe library for JavaScript — pandas-familiar ergonomics, WebAssembly-accelerated kernels, dual ESM/CJS, TypeScript types.

MCP server for Forge GPU kernel optimization — generate and optimize Triton/CUDA kernels on real H100/A100 GPUs from any AI coding agent

Run batches of CPU-bound work on native Rust threads from Node.js — batch kernels (hashing, compression, JSON, sorting, strings) and fused pipelines, with the event loop left free.

Jupyterlab extension to kill unused kernels, terminals and workspaces. User can configure the idle time (minutes) after which the resource will be released automatically. This helps with the locked memory, insane number of terminals opened etc.

Run batches of CPU-bound work on native Rust threads from Node.js — batch kernels (hashing, compression, JSON, sorting, strings) and fused pipelines, with the event loop left free.

Run batches of CPU-bound work on native Rust threads from Node.js — batch kernels (hashing, compression, JSON, sorting, strings) and fused pipelines, with the event loop left free.

websocket-zmq relay for Jupyter kernels

Run batches of CPU-bound work on native Rust threads from Node.js — batch kernels (hashing, compression, JSON, sorting, strings) and fused pipelines, with the event loop left free.

Sentinos Node.js SDK for orchestrating kernels, policy traces, and Chronos data in production agents

Mastra sandbox provider backed by agentkit-js kernels — WASM isolation with no external infrastructure (alternative to Blaxel/E2B providers)

Run batches of CPU-bound work on native Rust threads from Node.js — batch kernels (hashing, compression, JSON, sorting, strings) and fused pipelines, with the event loop left free.

Run batches of CPU-bound work on native Rust threads from Node.js — batch kernels (hashing, compression, JSON, sorting, strings) and fused pipelines, with the event loop left free.

Local speech AI for the browser — ASR (Parakeet, Whisper, Nemotron), TTS (Kokoro), VAD (Silero), speaker diarization (Sortformer) on hand-written WebGPU + WASM-SIMD kernels. No onnxruntime; model weights stream from Hugging Face and cache locally.

Raster analysis kernels for DEMs: slope, aspect, hillshade, curvature, terrain derivatives (TRI, TPI, roughness), D8 flow direction/accumulation, sink filling. Compiled to WebAssembly via atra.

Source-only senpi extension package for codemode evaluation tools