You don't need a monorepo to solve this problem. The dependent projects would depend on a specific version of an artifact, rather than a 'latest' pointer. Ex

You don't need a monorepo to solve this problem. The dependent projects would depend on a specific version of an artifact, rather than a 'latest' pointer. Example: Project 1 depends on version 1.2.3 of Library A, and Library A builds are hosted in an artifact repo. Project 2 needs an update to Library A, and those updates are built and released as version 1.3.0. Project 1 continues to use version 1.2.3, until it's updated to work with the new 1.3.0 API.