Skip to content
You must be logged in to sponsor castastrophe

Become a sponsor to [ Cassondra ]

I build the tools I wish existed — then make them free for everyone.

I'm Cassondra, a front-end engineer and design systems architect with 12+ years spent at Adobe, Red Hat, and now running my own consulting practice. Most of my open-source work lives at the intersection of developer experience and precision engineering: the kind of tooling where the details aren't decorative — they're the whole point.

My recent focus has been on AI-powered developer tooling built with efficiency as a first principle. My Claude skills (published under @allons-y) are designed to do more with less — carefully architected prompt systems that minimize token consumption without sacrificing output quality. The goal is always the same: smarter automation that respects your time and your API bill.

On the CSS/web platform side, I'm an active contributor to the CSS Working Group and have spent years building and maintaining design systems at enterprise scale — Spectrum at Adobe, PatternFly at Red Hat. The open-source packages I publish today carry that same standard: accessibility-first, well-documented, and built to last.

@allons-y/envoy — my newest package — auto-populates .env files from a root ~/.env source of truth. It sounds simple. The implementation is not, and that's the point.

Sponsoring supports the research, infrastructure, and time that make this work possible. Everything I ship is free. Your support keeps it that way.

Featured work

  1. castastrophe/envoy

    Copies values from a root .env into a project .env using .env.example as a template

    JavaScript
  2. castastrophe/agent-skills

    A collection of skills designed for Claude to streamline processes and reduce token-use

    JavaScript
  3. JavaScript
  4. castastrophe/stylelint-header

    A stylelint custom rule to check for a header comment (i.e., copyright notice).

    JavaScript 3
  5. castastrophe/glob-concat-cli

    A command-line interface for concatenating files supporting glob syntax

    JavaScript 2
  6. castastrophe/gulp-custom-include

    A gulp plugin to include the content of a file into another

    JavaScript 3

$ a month

You'll receive any rewards listed in the $5 monthly tier. Additionally, a Public Sponsor achievement will be added to your profile.

$5 a month

Select

Your GitHub handle, name, and/or organization in the README acknowledgments section of all active @allons-y packages.