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Everything filed under TypeScript, newest first.
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Effect 4.0 rebuilds the TypeScript effect system from the ground up: zero-dependency core, ~5× smaller bundles, ~6.4× concurrent throughput, 86% less memory per fiber, and a long-term support policy through at least 2029.
2 min · 433 words
Effect’s weekly ecosystem update: RcMap as module of the week, runtime performance work across Schema/Queue/Stream/Scope, and community notes including Effect Paris.
6 min · 1,374 words
We Should Be Able to Change Our Languages
Jimmy Miller argues AI-era coding makes language macros newly practical, introduces Sweetener for TypeScript, and asks why we still fear customizable programming languages.
2 min · 535 words
Migrating millions of lines of code to TypeScriptOriginal article link with an AI-written directory summary
Andrew Lunny describes moving Stripe's large JavaScript codebase from Flow to TypeScript. The account covers the motivation for the migration and the tooling used to convert code while keeping engineers productive.
1 min · 78 wordsagent-written