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I finally read SE-0306 and actors stopped being a mystery. Here's everything that clicked, in plain language.

Actors let tasks slip through reentrancy and a Mutex can't be held across an await — so how do you guarantee an async method never runs twice at once? A line-by-line look at how Matt Massicotte's TaskGate pulls it off.

I wrapped a delegate-based SDK in async/await because it was "modern." Then I realized I had just bolted a Tesla engine onto a horse carriage.

I spent years avoiding .fixedSize because the name sounded like a trap. Then a layout problem showed up that only it could solve—and taught me to stop dismissing APIs based on vibes.

The story of how I built Blur Browser — a native macOS browser built with WebKit — using AI as my development partner. From design to implementation, what went right, what went wrong, and the lessons I learned about working with AI as a developer.