Is there an example blueprint of a mono repo using CodeCatalyst?

I have been unable to find an example of a mono repo with separate pipelines being defined for the consittuent parts of the repo e.g. a ui folder and backend folder or even a situation where I have multiple java libs in different folders and one application (each with their own pipeline).

I found this question: https://repost.aws/questions/QUg--wicF3Qa61pA66XSzgCQ/i-have-mono-repo-for-the-code-and-separate-pipelines-for-the-frontend-and-backend-how-to-trigger-only-the-specific-pipelines-when-the-code-is-committed-to-respective-folder-in-the-commit but the answer is for code commit and does not use the yaml file used in CodeCatalyst