123: DTF:HN for May 3, 2026

Your Daily Tech Feed covering the top 10 stories on Hacker News for May 3, 2026. Featuring: A couple million lines of Haskell: Production engineering at Mercury, This Month in Ladybird – April 2026, Dav2d, Unverified Evaluations in Dusk's PLONK, Six Years Perfecting Maps on WatchOS, and more.

Stories covered:

1. A couple million lines of Haskell: Production engineering at Mercury
   (Article | HN Discussion | 🎧 0:28)
2. This Month in Ladybird – April 2026
   (Article | HN Discussion | 🎧 4:02)
3. Dav2d
   (Article | HN Discussion | 🎧 7:39)
4. Unverified Evaluations in Dusk's PLONK
   (Article | HN Discussion | 🎧 11:38)
5. Six Years Perfecting Maps on WatchOS
   (Article | HN Discussion | 🎧 14:55)
6. Do_not_track
   (Article | HN Discussion | 🎧 18:15)
7. Group averages obscure how an individual's brain controls behavior: study
   (Article | HN Discussion | 🎧 21:26)
8. Specsmaxxing – On overcoming AI psychosis, and why I write specs in YAML
   (Article | HN Discussion | 🎧 24:56)
9. Neanderthals ran 'fat factories' 125,000 years ago (2025)
   (Article | HN Discussion | 🎧 28:20)
10. Windows quality update: Progress we've made since March
    (Article | HN Discussion | 🎧 31:32)