I like the idea, but I don't like that this is one more system that should be configured with YAML! Why not something cleaner and more robust like TOML?
As far as I understood, they are using Gradle as back-end only to test the idea. If it works as intended, Gradle would be replaced by a new build tool.
https://ruudvanasseldonk.com/2023/01/11/the-yaml-document-fr...