Monorepo to Polyrepo Migration
Split a monolithic monorepo into independent repositories for increased autonomy, clearer ownership, and simplified deployment.
Who This Is For
Best suited for teams that have outgrown their monorepo, experiencing slow build times, unclear ownership boundaries, or needing to split into separate business units or open-source projects. If your monorepo has become unwieldy or you need to establish clearer boundaries, this service helps.
Typical Problems I Solve
- Extremely slow build and test times affecting productivity
- Unclear ownership and boundaries between teams or projects
- Complex dependency management within the monorepo
- Difficulty in versioning and releasing individual projects
- Teams stepping on each other's toes with overlapping changes
- Need to open-source or distribute specific projects separately
My Approach
Analyze monorepo structure and identify logical separation boundaries
Design polyrepo architecture with clear interfaces and contracts
Create extraction plan minimizing breaking changes
Extract projects with full git history preservation
Establish shared libraries as published packages
Configure independent CI/CD pipelines for each repository
What You Get
- Detailed separation analysis and migration strategy
- Extracted repositories with preserved git history
- Shared libraries published as npm packages
- Independent CI/CD pipelines for each repository
- Inter-repository dependency management strategy
- Documentation for distributed development workflows
- Versioning and release process guidelines
- Team training on polyrepo best practices
How We Work Together
Monorepo to polyrepo splits typically take 3-6 weeks per major project being extracted. I work closely with your teams to ensure smooth transitions and minimal disruption. Engagements can extract all projects at once or phase the split over time.
Frequently Asked Questions
How do you handle shared code?
Shared code is extracted into separate library packages published to npm or private registries. This ensures clean dependency management while allowing code reuse.
Will we lose our git history?
No, I use git filter-repo or similar tools to extract repositories while preserving relevant commit history for each extracted project.
How do we manage dependencies after the split?
I establish clear dependency management using semantic versioning and package managers. Shared libraries are versioned independently, and consuming projects use standard dependency declarations.
What about cross-cutting changes?
While cross-cutting changes become more complex, I help establish processes and tooling for coordinating changes across repositories, including automated dependency updates.
Is splitting our monorepo the right choice?
Not always. During assessment, I evaluate if the split addresses your actual problems or if improvements to the monorepo structure would be more beneficial.
Ready to Get Started?
Monorepo to Polyrepo Migration
Split a monolithic monorepo into independent repositories for increased autonomy, clearer ownership, and simplified deployment.