faq.md

title	sidebar_label	slug
FAQ	FAQ	/faq

Why can't I do X in Starlark?

Starlark is intended to be a configuration and orchestration language, not a general-purpose programming language. It is excellent at simplicity, readability, and determinism, and terrible at general-purpose programming. We want to use Starlark for what it's good at, while making it easy for you to call down to whatever general-purpose programming you need for more complex logic.

Therefore, Kurtosis provides:

• plan.run_sh for running Bash tasks on a disposable container
• plan.run_python for running Python tasks on a disposable container
• plan.exec for running Bash on a service

All of these let you customize the image to run on, so you can functionally call any code in any language using Kurtosis.