Pkl (pronounced “Pickle”) is Apple’s take on configuration-as-code. It sits between traditional formats like JSON and full programming languages

Pkl: Apple's New Configuration Language That Could Replace JSON and YAML

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2024-11-07 09:30:05

Pkl (pronounced “Pickle”) is Apple’s take on configuration-as-code. It sits between traditional formats like JSON and full programming languages like Python, aiming to make configuration more reliable and maintainable.

Here’s what caught my attention about Pkl - it’s not trying to be another general-purpose programming language. Instead, it’s laser-focused on solving one specific problem: making configuration less painful.

As someone who’s wrestled with YAML indentation and JSON’s lack of comments more times than I care to count, I’m intrigued by what Apple is bringing to the table with Pkl.

Pkl by Apple: A configuration-as-code language with rich validation and tooling. Released on February 1, 2024, it’s available under the Apache-2.0 license.

Configuration files often start simple but grow complex over time. Think about a typical deployment config - it might begin with a few environment variables but evolve into hundreds of lines spanning multiple services. YAML and JSON struggle with this complexity, while general programming languages can be overkill.

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