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Introducing tsrs: a Port of TypeScript to Rust
Cloudflare and VoidZero, with Max Schwenk of Owner.com and in collaboration with the TypeScript team, announce tsrs, a faithful Rust port of the TypeScript compiler incubated in the Oxc toolchain. Early benchmarks show it up to 8x faster with about 70% less memory than TypeScript 7.0; the post explains why Rust and Wasm matter and how the port will stay in sync.
5 min · 1,102 words
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
Adding Go's defer to the TypeScript Compiler
Andrew Healey forks the Go-based TypeScript compiler to add a Go-style defer statement, walking through how the compiler is structured, how defer should behave including error handling, and the JavaScript it emits, before concluding defer probably should not exist and that TypeScript's using declarations are the closer fit.
5 min · 1,234 words
TypeScript and Haskell: Unions & Singletons
Gabriel Garcia explores how TypeScript's combination of union types and literal (singleton) types gives APIs precision, then tries to reproduce the same pattern in Haskell with type families, unboxed sums and singleton naturals, showing where the encodings get awkward and why they fail to behave like a set of types.
2 min · 428 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