Pulumi can render YAML from code (https://www.pulumi.com/blog/kubernetes-yaml-generation/) but can it also do the reverse? I give it YAML and it gives me some Typescript on which I can continue working?

Not yet, but it’s a matter of time. We’re in the process of building prerequisite tooling.

Too bad. I’m fighting a Helm chart at the moment for a POC project.

Commented.

I've been meaning to investigate this npm lib to help with converting yaml ConfigMap examples to TS/JavaScript. https://www.npmjs.com/package/js-yaml