Editing Openai/695d28c7-94c8-8006-836b-96dbe559b5eb (section)

=== User: This is a question from Software Engineering Stack Exchange: ===
This is a question from Software Engineering Stack Exchange:

’m working on a very large frontend project organized as a single monorepository.

We have a components/ directory that contains 30+ shared UI components. These components are used across a large number of features, and many independent teams work on different features in parallel.

The core problem:

Any change to a shared component can potentially cause regressions across the entire product, which makes QA extremely expensive and slow. Because of this, teams are afraid to modify shared components, even when improvements or fixes are needed.

We must keep a single repository (splitting shared components into a separate repo is considered a bad option due to the number of teams and coordination overhead).

Different teams should be able to work independently without blocking each other.

Changes to shared components must not trigger full-product regression testing by default.

The solution should scale to dozens of components and teams over time.

I’m looking for architectural patterns or proven approaches to organizing shared UI components in a large monorepo. I stand with versioning of components (can have Button, Button.v2 Button.v3 and etc), what are the pros and cons I might encounter?

I’m especially interested in real-world approaches used in large-scale frontend systems, not just theoretical ideas.

If helpful, the frontend stack is React + TypeScript, but I’m more interested in architectural patterns than framework-specific solutions.

Any guidance, references, or examples would be greatly appreciated.