Cassidoo.co is the personal blog of Cassidy Williams, a well known developer, speaker, and educator who writes about JavaScript, React, career growth, web development, dev tools, and learning in public. Her posts mix technical insights with approachable explanations, covering topics like UI patterns, coding tips, productivity workflows, and the human side of software engineering. Cassidy is known for her weekly newsletter, open-source work, and community involvement.
172 articles from this blog
Guide to connecting Logitech MX Creative Console to Elgato Key Lights using a Python script and REST API.
Recap of the opening keynote at Deep Dish Swift 2026, an iOS-focused conference, blending AI insights with pizza puns.
A speaker recounts their experience teaching AI and software development workshops at TechCamp Korea 2026, hosted by the U.S. Embassy Seoul.
A review of the BYOK digital typewriter, a portable distraction-free writing device for bloggers and writers.
A developer's journey migrating a project's CSS from Less to Sass to native CSS, highlighting the evolution of web styling.
A technical guide detailing camera settings and hardware setup for professional-quality live streaming using Sony cameras and Elgato gear.
A technical exploration of creating artistic designs using advanced CSS properties like gradients, corner-shape, and skew transforms.
A developer shares how manually engaging with newsletter subscribers by asking for replies significantly improved email open rates.
Explores the CSS corner-shape property for creating beveled, scooped, and other unique border corners with modern CSS.
A guide to creating a PowerShell function that mimics the Linux 'touch' command for creating and updating files.
A developer shares an experiment to improve discoverability in LLMs and AI tools like ChatGPT by directly asking them for SEO advice.
A developer shares the creation process of 'Code Wave,' a 2D word-collecting game built with Phaser and JavaScript for the GitHub Game Off 2025.
A developer's manifesto on using AI as a tool without letting it replace critical thinking and personal intellectual effort.
A tech professional shares advice on AI, tech careers, and the importance of human networking in the modern job market during a talk to college students.
A developer creates a humorous nature documentary-style video about developers pretending to work before the holidays, using office b-roll.
A technical blog post explaining how to style markdown-generated blockquote attributions with targeted CSS selectors.
A developer argues for normalizing 'finished' software that works without constant updates, contrasting it with the expectation of perpetual maintenance.
Explains the purpose and configuration options for the .github folder in GitHub repositories, including templates, workflows, and community files.
Tips for leading tech projects and influencing decisions without formal authority, focusing on expertise, relationships, and communication.
A developer's personal review and comparison of Ente, an end-to-end encrypted photo backup service, against alternatives like Amazon Photos and self-hosted options.
