DTF:HN for March 4, 2026

Your Daily Tech Feed covering the top 10 stories on Hacker News for March 4, 2026. Featuring: Motorola GrapheneOS devices will be bootloader unlockable/relockable, RFC 9849. TLS Encrypted Client Hello, Agentic Engineering Patterns, Better JIT for Postgres, RE#: how we built the fastest regex engine in F#, and more. Stories covered: 1. Motorola GrapheneOS devices will be bootloader unlockable/relockable https://grapheneos.social/@GrapheneOS/116160393783585567 HN discussion: https://news.ycombinator.com/item?id=47241551 2. RFC 9849. TLS Encrypted Client Hello https://www.rfc-editor.org/rfc/rfc9849.html HN discussion: https://news.ycombinator.com/item?id=47244291 3. Agentic Engineering Patterns https://simonwillison.net/guides/agentic-engineering-patterns/ HN discussion: https://news.ycombinator.com/item?id=47243272 4. Better JIT for Postgres https://github.com/vladich/pg_jitter HN discussion: https://news.ycombinator.com/item?id=47243804 5. RE#: how we built the fastest regex engine in F# https://iev.ee/blog/resharp-how-we-built-the-fastest-regex-in-fsharp/ HN discussion: https://news.ycombinator.com/item?id=47206647 6. A CPU that runs entirely on GPU https://github.com/robertcprice/nCPU HN discussion: https://news.ycombinator.com/item?id=47243069 7. Graphics Programming Resources https://develop--gpvm-website.netlify.app/resources/ HN discussion: https://news.ycombinator.com/item?id=47242193 8. Show HN: I made a zero-copy coroutine tracer to find my scheduler's lost wakeups https://github.com/lixiasky-back/coroTracer HN discussion: https://news.ycombinator.com/item?id=47230620 9. Claude's Cycles [pdf] https://www-cs-faculty.stanford.edu/~knuth/papers/claude-cycles.pdf HN discussion: https://news.ycombinator.com/item?id=47230710 10. On the Design of Programming Languages (1974) [pdf] https://web.cs.ucdavis.edu/~su/teaching/ecs240-w17/readings/PLHistoryGoodDesign.PDF HN discussion: https://news.ycombinator.com/item?id=47205031