Just one more YAML bro I swear trust me bro just one more meta level will solve everything just one more yaml please I promise you it's not bad just write yaml it's simple and clean just some more yaml man just one more yaml file you will certainly not regret it just add one more yaml
(Congratulations on the launch, looks interesting!)
I wrote the core engine behind this and your comment made me laugh pretty hard because I agree. I debated a lot about the best syntax and we experimented with various alternatives approaches. The core engine actually isn't YAML centric at all, in fact it doesn't use YAML—it is just data structures in and out.
We wound up exposing this as YAML purely because there's a lot of tooling out there for dealing with YAML. I am not sure if that's a good reason or not.... Writing the language server was quite nasty because of that choice! Our hope was that the language server and structural type checking (which is very simplistic at the moment) and testing framework can make it feel more like a real language and less YAMLy.
(Congratulations on the launch, looks interesting!)