DTF:HN for February 1, 2026

Your Daily Tech Feed covering the top 10 stories on Hacker News for February 1, 2026. Featuring: Netbird – Open Source Zero Trust Networking, What I learned building an opinionated and minimal coding agent, The Book of PF, 4th edition, How to Scale a System from 0 to 10M+ Users, Mobile carriers can get your GPS location, and more. Stories covered: 1. Netbird – Open Source Zero Trust Networking https://netbird.io/ HN discussion: https://news.ycombinator.com/item?id=46844870 2. What I learned building an opinionated and minimal coding agent https://mariozechner.at/posts/2025-11-30-pi-coding-agent/ HN discussion: https://news.ycombinator.com/item?id=46844822 3. The Book of PF, 4th edition https://nostarch.com/book-of-pf-4th-edition HN discussion: https://news.ycombinator.com/item?id=46844350 4. How to Scale a System from 0 to 10M+ Users https://blog.algomaster.io/p/scaling-a-system-from-0-to-10-million-users HN discussion: https://news.ycombinator.com/item?id=46845470 5. Mobile carriers can get your GPS location https://an.dywa.ng/carrier-gnss.html HN discussion: https://news.ycombinator.com/item?id=46838597 6. Reliable 25 Gigabit Ethernet via Thunderbolt https://kohlschuetter.github.io/blog/posts/2026/01/27/tb25/ HN discussion: https://news.ycombinator.com/item?id=46786575 7. Amiga Unix (Amix) https://www.amigaunix.com/doku.php/home HN discussion: https://news.ycombinator.com/item?id=46845244 8. The history of C# and TypeScript with Anders Hejlsberg [video] https://www.youtube.com/watch?v=uMqx8NNT4xY HN discussion: https://news.ycombinator.com/item?id=46782872 9. VisualJJ – Jujutsu in Visual Studio Code https://www.visualjj.com/ HN discussion: https://news.ycombinator.com/item?id=46799435 10. In praise of –dry-run https://henrikwarne.com/2026/01/31/in-praise-of-dry-run/ HN discussion: https://news.ycombinator.com/item?id=46840612