Fair point.

This. I’m willing to bet I talked to one of the people who use this internally at Apple a few years back when I interviewed there (before they decided to do away with remote hires). They didn’t mention it, but it fits the context.

Yes, I was using it when I joined Apple in mid 2020

Don't leave is hanging, how was your experience?

(Pkl, not Apple :p)

I absolutely loved it and I’ve been extremely impatient to see its release. I used it to generate k8s manifests, Terraform, all infra config files. Very flexible and fun to use

Do you know of any public resources about it's use cases?, other than the one linked in this submission of course.

What bout Pkl made it easier to write Terraform/K8s manifests/etc.?

I looked around and couldn't make sense of how to write out random config files like I manage with puppet and ERB files.

Are there any reasonable examples of such?

Additionally I cant think of other such projects from Apple. They tend to build things that get used extensively till the end of their life is consumed.

I wish Apple would continue to open source much more. Especially old software much like Microsoft does. I would kind of enjoy a Linux Distro that can natively run old Apple software and tools.

Clang leaps to mind. Most of LLVM was developed under Apple's auspices, although the project predates Apple hiring Chris Latner. Swift is also open source, although in practice it's almost always used in a macOS context. Which I think is a shame, it's a great language for writing the sorts of servers for which people usually reach for Go.

That's not a complete list of programs Apple has open-sourced, although clearly open-source software isn't what they're best known for. But clang alone is a worthy contribution which deserves to be recognized.

FoundationDB was open sourced a few years after they bought it too.