Open source. Open possibilities.

Bun is an all-in-one toolkit for JavaScript and TypeScript apps, featuring a fast runtime, bundler, test runner, and package manager in a single executable.

A CLI tool that scans for node_modules directories across your system, displays their sizes, and lets you interactively delete them to free up disk space.

NanoPay is a JavaScript/TypeScript library for the Nano cryptocurrency network. It provides client workflows and low-level functions for accounts, local signing, block building, work generation, node RPC, sends, receives, representative changes, exact amount conversion, payment URIs, and confirmation watching. It supports ESM, CommonJS, TypeScript, and browsers, and is GPL-3.0-only.

Rust to WebAssembly workflow tool for building and publishing npm packages. Supports project generation, building, testing, and publishing of Rust-generated WebAssembly modules for JavaScript interop in browsers or Node.js.

A comprehensive Node.js best practices guide covering project architecture, code style, testing, production, security, and more.

npm/PyPI packages and an MCP server for querying the Brazilian BNCC curriculum. Bundled data with 1,721 verified learnings from MEC/CNE, zero runtime dependencies. Integrates BNCC into TypeScript, Python, or AI agents via MCP.

tsParticles is a lightweight TypeScript library for creating customizable particle effects, confetti, and fireworks animations as website backgrounds. Offers framework-specific components for React, Vue, Angular, Svelte, and more.

pnpm is a fast, disk space efficient package manager for Node.js that uses a content-addressable filesystem to reduce redundancy.

Meteor is a full-stack JavaScript platform for building modern web, mobile, and desktop apps with one codebase. It integrates popular frontend frameworks like React, Vue, Svelte, and Blaze, and offers CLI tooling for rapid prototyping and deployment.

A monorepo containing configuration files for Saeki Tominaga's personal website (w0s.jp). It centralizes linting and type-checking rules for HTML, CSS, and JavaScript/TypeScript using tools like Markuplint, Stylelint, Oxlint, ESLint, and TypeScript.

Yarn 1.x 是 JavaScript 包管理器，提供快速、可靠、安全的依赖安装，支持离线模式、确定性安装与锁文件。该仓库已冻结，仅接受安全修复，新功能迁移至 yarnpkg/berry。

Artifact Gateway is a lightweight, protocol-native software artifact repository that supports OCI, Maven, npm, PyPI, Go modules, Conan 2, and Raw formats. It uses PostgreSQL for coordination and S3-compatible storage for artifacts, with no Redis, Kafka, or external message queues required. Available as a single binary or split roles, with a web Console for management.

release-it is a generic command-line tool that automates versioning and package publishing tasks, including version bumps, Git commits and tags, changelog generation, and releases on GitHub, GitLab, and npm. It supports hooks, plugins, pre-releases, and CI/CD environments.

Valyrian.js is a lightweight, isomorphic frontend framework designed to build PWAs with a single codebase that runs in both the browser and Node.js.

Ruflo is an agent meta-harness for Claude Code and Codex that enables multi-agent swarms, self-learning memory, RAG integration, federation, and extensive plugin ecosystem to build coordinated AI workflows.