I ❤️ YAML. And I really see the need for something that is not Gradle. In the last 15 years of development experience I went from Ant to Maven to Gradle and now going back to Maven (Maven has a polyglot Plugin as well). Gradle promised so much and became fat, slow, confusing and you got 5 ways of solving everything with tutorials online showing you 6 wrong ones. And breaking with Java compatibility (like the time it took to be java 21 compatible)... gah.
REALLY looking forward to Ampere, did not yet have a chance to seriously give it a try.