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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 — obsessively architected prompt systems that minimize token consumption without sacrificing 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. allonsy-studio/stylelint-header

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

    JavaScript 3
  2. allonsy-studio/glob-concat-cli

    A command-line interface for concatenating files supporting glob syntax

    JavaScript 2
  3. allonsy-studio/envoy

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

    JavaScript
  4. allonsy-studio/agent-skills

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

    JavaScript
  5. allonsy-studio/template-actions

    A repository to serve as a template for future GitHub Actions

    JavaScript
  6. JavaScript
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

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