Now the new fashion is having a bazillion of YAML files, describing Kubernetes containers full of WASM modules, replicating application servers on the edge.
ingy is batshit insane (and great fun to collaborate and/or drink with) but even he didn't expect text templated turing complete YAML to happen.
helm does still (last I checked) allow you to use your own transform script rather than the template engine so for private helm charts you can use https://yglu.io with data in environment variables to get less fragile templating if you can get away with doing it that way.
I find Rust a bit hard to follow (having not studied it in any great detail) but a good deal of that boilerplate either avoids common problems in code or allows you to explicitly say "yes I know I'm doing something dangerous".
However for a while you're right people may have gotten a little bit carried away with "RIIR" - but I cannot fault someone for being enthusiastic :)
Well, when the pair of Rust Witnesses come by in suit and tie to testify to the power of their language and to ask you to move to that language, you're supposed to kidnap them and make them write the program and boring boilerplate for you.