You will not have perfect knowledge. Even at Google they don't truely have a mono repo, as there is several other projects that live outside the monorepo. A bui

You will not have perfect knowledge. Even at Google they don't truely have a mono repo, as there is several other projects that live outside the monorepo. A build system will also detect changes and run test, produce a build, and notify maintainers, when you update a dependency. Monorepo is not needed for this.