Open source. Open possibilities.

Nx is a monorepo platform for TypeScript and polyglot codebases: a Rust-built, TypeScript-extensible core that caches what did not change, runs only affected tasks, and adds plugins plus an integrated, self-healing CI.

newt-app is a one-command scaffolder that generates a production-ready full-stack TypeScript monorepo combining a Next.js frontend with a NestJS backend, plus shared authentication, Kysely persistence on SQLite or Postgres, shadcn/ui components, and Turborepo with pnpm workspaces.

vos is an open programmatic video engine that treats video as a deterministic function of time, allowing for resolution-independent rendering and data-driven editing.

An MIT-licensed family of independent TypeScript packages that convert losslessly between OOXML, OpenDocument, Markdown, EPUB, PDF, RTF and legacy formats through one shared Zod schema, with a CLI, MCP server and web UI built on top.

Bit is an open-source build system that organizes source code into reusable components and composes them into applications, with support for NodeJS, React, Angular, Vue, NextJS and more, plus MCP integration for AI agents.

An opinionated Node.js/TypeScript framework treating AWS Lambda as a first-class citizen, providing DDD domain events, Unit of Work transactions, RFC 7807 problem handling, and SaaS billing/metering via decorators and types.

manygit is a terminal UI for managing multiple git repositories at once. It scans a folder tree, shows each repo's branch and status (ahead/behind/dirty), and lets you fetch, pull, push, checkout branches, view commit graphs, run scripts, and browse GitHub PRs—all from one screen. No config file needed; it discovers repos automatically.

Tach is a Rust-powered Python tool designed to visualize and enforce dependency boundaries and interfaces within a modular architecture.

TundraLibs is a suite of independent, cross-runtime TypeScript libraries compatible with Deno, Bun, Node.js, Cloudflare Workers, and browsers. It provides modular tools for databases (ORM, drivers), authentication, validation, logging, tracing, caching, and HTTP routing.

Open monorepo from Nav's Team Foreldrepenger with self-service solutions for applying for parental benefit (foreldrepenger), pregnancy benefit (svangerskapspenger), and lump-sum grant (engangsstønad), with setup for local development via Vite, Storybook, and mock server.