How we built Git storage for millions of Netlify projects

Netlify has introduced a managed Git repository for projects created without an external Git host, responding to rapid growth in direct uploads, API-based creation, MCP integrations, and agent-generated projects, which accounted for 93% of new projects in the previous month. The service provides standard Git functionality for collaboration among users, editors, build systems, and AI agents while preserving compatibility with external hosts such as GitHub, GitLab, Bitbucket, Azure DevOps, and Cursor Origin. Built in Go, it uses local bare repositories as disposable caches and Amazon S3 as the durable source of truth for native Git objects and branch references, with conditional S3 writes ensuring that refs cannot point to unavailable objects and that concurrent updates are handled safely. Netlify reports that integrated Git simplifies agent workflows by replacing custom rebasing with standard merges, often reducing operations from minutes to roughly one second, while workspace preparation performance approaches that of GitHub-connected projects. The company positions the system as infrastructure for projects that arrive without Git hosting rather than as a competing forge, and plans further discussion of its scaling, security, and migration work.

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