Why I Built It Canvas ships with a powerful editor, but Full HTML in Canvas can be risky if the configuration is sloppy. I wanted a deterministic, step‑by‑step...

Introduction If you are building a web application and see this error in your browser console: text Access to fetch at 'https://api.example.com' from origin 'h...

Background A recent question on X formerly Twitter asked for a “Matt Levine‑style” explanation of how OAuth works and, more importantly, why it was designed th...

Hello, World In December 1990, an application called WorldWideWeb was developed on a NeXT machine at the European Organization for Nuclear Research CERN just o...

Hello, World In December 1990, an application called WorldWideWeb was developed on a NeXT machine at the European Organization for Nuclear Research CERN just o...

Over the past year I kept trying to automate blog content for my SaaS projects. It always started simple: - Generate ideas with AI - Write drafts - Push them th...

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The Core Principle: Semantics Over Superstition HTML is not a set of fragile rules that break accessibility when slightly bent. It is a semantic language desig...

Skills Night – San Francisco Recap Tuesday night we hosted Skills Night in San Francisco, an event for developers building on and around the open‑skills ecosys...

Why async errors bypass try/catch Timothy placed a try/catch block at the top of his application, confident that any error would be caught: javascript function...

Overview It is February 20th. Today we are turning a webpage into a game. Your mission is to hide “treasures” inside a busy scene and make them findable withou...