199: DTF:HN for July 18, 2026

Your Daily Tech Feed covering the top 10 stories on Hacker News for July 18, 2026. Featuring: Regressive JPEGs, AWS: Inaccurate Estimated Billing Data – $1.7 billion, Funny item co-occurrences in 3.2M Instacart orders, Thanks HN for 15 years of support and helping me find my life's work, Porting nanochat to a TPU: what carries over from PyTorch, and what breaks, and more.

Stories covered:

1. Regressive JPEGs
   (Article | HN Discussion | 🎧 0:28)
2. AWS: Inaccurate Estimated Billing Data – $1.7 billion
   (HN Discussion | 🎧 4:03)
3. Funny item co-occurrences in 3.2M Instacart orders
   (Article | HN Discussion | 🎧 7:44)
4. Thanks HN for 15 years of support and helping me find my life's work
   (HN Discussion | 🎧 11:03)
5. Porting nanochat to a TPU: what carries over from PyTorch, and what breaks
   (Article | HN Discussion | 🎧 14:13)
6. Reviving a 15-year-old netbook with Arch Linux
   (Article | HN Discussion | 🎧 17:24)
7. First atmosphere found on Earth-like planet in habitable zone of distant star
   (Article | HN Discussion | 🎧 20:49)
8. In-toto: A framework to secure the integrity of software supply chains
   (Article | HN Discussion | 🎧 23:43)
9. TP-Link Kasa cameras leaked home GPS via unauthenticated UDP for 6 years
   (Article | HN Discussion | 🎧 27:07)
10. The Zilog Z80 has turned 50
    (Article | HN Discussion | 🎧 30:53)