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Cloudflare blog card with the orange Cloudflare cloud logo and the headline 'How we saved 100 terabytes of memory by optimizing 1.1.1.1's DNS cache', beside an illustrated pineapple standing among small houses.
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100 terabytes of RAM came back when Cloudflare shrank one DNS cache entry by 56%

Cloudflare's 1.1.1.1 holds 250 billion DNS cache entries. Five Rust layout changes cut each one from 953 bytes to 420, and lookups got faster.

GitHub repository card for vercel-labs/scriptc, labelled TypeScript-to-Native Compiler, showing the Vercel triangle logo and 1k stars
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TypeScript compiled to native: Vercel's scriptc ships a 178KB binary with no JS engine

Vercel Labs open-sourced scriptc, a TypeScript-to-native compiler with no JS engine in the binary. Its README claims 2.4ms startup. Hacker News is not convinced.

Linear's product homepage showing its issue-tracking interface
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Linear keeps its database in the browser. That's why the app feels instant

A widely shared breakdown explains why Linear feels instant: a local-first sync engine, optimistic UI, and an in-browser object cache. Here's the architecture, in plain terms.