DTF:HN for April 1, 2026

Your Daily Tech Feed covering the top 10 stories on Hacker News for April 1, 2026. Featuring: Is BGP Safe Yet? No. Test Your ISP, Claude Code Unpacked : A visual guide, Show HN: Sycamore – next gen Rust web UI library using fine-grained reactivity, CERN levels up with new superconducting karts, Show HN: Baton – A desktop app for developing with AI agents, and more. Stories covered: 1. Is BGP Safe Yet? No. Test Your ISP https://isbgpsafeyet.com/ HN discussion: https://news.ycombinator.com/item?id=47600382 2. Claude Code Unpacked : A visual guide https://ccunpacked.dev/ HN discussion: https://news.ycombinator.com/item?id=47597085 3. Show HN: Sycamore – next gen Rust web UI library using fine-grained reactivity https://sycamore.dev HN discussion: https://news.ycombinator.com/item?id=47599956 4. CERN levels up with new superconducting karts https://home.cern/news/news/engineering/cern-levels-new-superconducting-karts HN discussion: https://news.ycombinator.com/item?id=47597935 5. Show HN: Baton – A desktop app for developing with AI agents https://getbaton.dev/ HN discussion: https://news.ycombinator.com/item?id=47599771 6. Intuiting Pratt Parsing https://louis.co.nz/2026/03/26/pratt-parsing.html HN discussion: https://news.ycombinator.com/item?id=47573450 7. Show HN: CLI to order groceries via reverse-engineered REWE API (Haskell) https://github.com/yannick-cw/korb HN discussion: https://news.ycombinator.com/item?id=47571183 8. Consider the Greenland Shark (2020) https://www.lrb.co.uk/the-paper/v42/n09/katherine-rundell/consider-the-greenland-shark HN discussion: https://news.ycombinator.com/item?id=47539945 9. Claude Wrote a Full FreeBSD Remote Kernel RCE with Root Shell (CVE-2026-4747) https://github.com/califio/publications/blob/main/MADBugs/CVE-2026-4747/write-up.md HN discussion: https://news.ycombinator.com/item?id=47597119 10. New Patches Allow Building Linux IPv6-Only, Option to Deprecate "Legacy" IPv4 https://www.phoronix.com/news/Linux-IPv6-IPv4-Legacy-Knobs HN discussion: https://news.ycombinator.com/item?id=47600434