Primer is GitHub's design system. This is the CSS implementation

An open source collection of design principles and methods.

The Artsy Engineering Open-Source Developers Blog

Sass utilities for the frontend laborer.

A small lightweight design system for use in Figma Plugins

Sass unit tests

An open-source theme for Jekyll

Custom responsive grids in Sass that work in older browsers.

Tools and resources for naming things.

Slash Packaging is a directory of businesses that offer packaging sustainability information on their website at the URL /packaging

A public notebook / digital garden for The Bentway’s Digital and/as Public Space Micro-Residency

Un sitio donde poner mis recetas de cocina