Mega
An open-source Git-compatible monorepo engine built in Rust for managing petabyte-scale codebases and AI agent workflows.
What is Mega?
Mega is an open-source implementation of Google Piper, designed as a Git-compatible monorepo engine for managing petabyte-scale codebases. It provides the unified context, structured metadata, and programmatic interfaces that AI coding agents need to operate reliably at scale, while remaining fully compatible with Git workflows for human developers.
Engineering teams and organizations building large-scale, AI-native software development workflows where AI agents are first-class participants alongside human developers. It's particularly suited for projects requiring Google-scale monorepo infrastructure in open-source environments.
Developers choose Mega because it brings Google-scale monorepo infrastructure to open-source projects, purpose-built for the AI agent era with features like trunk-based development optimized for agents, full Git compatibility, and integration with modern build systems like Buck2. Its unique selling point is enabling versioned, attributable, and traceable agent actions from intent to merge.
Overview
Mega is an open-source implementation of Google Piper — a Git-compatible monorepo engine built for the AI Agent era.
Use Cases
Best For
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