A monorepo unifies tooling, simplifies dependency management, and makes cross-package refactors trivial. For teams shipping multiple packages, the coordination benefits outweigh the scaling challenges.

• Atomic commits across packages
• Shared CI/CD configuration
• Easier code reuse and discovery

Monorepos add complexity to CI pipelines, slow down clones, and create implicit coupling between unrelated projects. Polyrepos enforce clear ownership boundaries and scale independently.

• Independent deploy cycles
• Faster CI for isolated changes
• Clear ownership boundaries