aer 0.2.0

A command-line toolkit for creatives.
Documentation

aer on crates.io aer on docs.rs Ask DeepWiki about aer

The toolkit for creatives.

Quickstart

Here's the TL;DR to get going quick with aer for web development:

  1. cargo install aer
  2. cd to a path containing assets you want to compile and serve over local HTTP
  3. aer init
  4. Configure your source and target ("build") paths in Aer.toml
  5. aer serve
  6. Check out your assets on localhost:1337

Check out what's here to see everything else you can do.

What's Here

Asset Processors

aer procs runs a pipeline of asset processors defined in an Aer.toml configuration file. Processors transform source assets (Markdown, SCSS, images, templates) into production-ready output with support for profile-based configuration (e.g., development vs production settings).

[!NOTE] Use aer init to create a starter Aer.toml in the current directory.

aer serve starts a local development server that watches for file changes and automatically rebuilds assets.

See concept/README.md for detailed documentation.

Color Palette Picker

Picture of the aer color palette tool

aer palette launches an interactive color palette picker based on Oklab Colorspace relationships.

License and Contributions

Copyright © 2026 With Caer, LLC.

Licensed under the Functional Source License, Version 1.1, MIT Future License. Refer to the license file for more info.