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This is a recap of the top 10 posts on Hacker News on Jul 29, 2026.Feel free to leave feedback on Github: https://github.com/denolfe/hacker-news-highlights(00:00) - Intro (00:19) - Substack writers, you need a website (01:46) - Codex Security (03:13) - Kimi K3 Architecture Overview and Notes (04:40) - Delayed Gratification – Proud to Be 'Last to Breaking News' (05:55) - Show HN: I was tired of opening 2 tabs for every HN link, so I made a userscript (07:10) - Zig's Incremental Compilation Internals (08:48) - Steel Bank Common Lisp version 2.6.7 (09:56) - Half-Life ported to Mac OS 9 (11:05) - Discovering Cryptographic Weaknesses with Claude (12:27) - Una GPS smart watch – Repairable, USB-C charging, developer-friendly (13:31) - Outro Substack writers, you need a websitehttps://elizabethtai.com/2026/06/10/substack-writers-you-need-a-website/https://news.ycombinator.com/item?id=49086788Codex Securityhttps://github.com/openai/codex-securityhttps://news.ycombinator.com/item?id=49089755Kimi K3 Architecture Overview and Noteshttps://sebastianraschka.com/blog/2026/kimi-k3-architecture-notes.htmlhttps://news.ycombinator.com/item?id=49085698Delayed Gratification – Proud to Be 'Last to Breaking News'https://www.slow-journalism.com/https://news.ycombinator.com/item?id=49085731Show HN: I was tired of opening 2 tabs for every HN link, so I made a userscripthttps://github.com/twalichiewicz/HNewherehttps://news.ycombinator.com/item?id=49090607Zig's Incremental Compilation Internalshttps://mlugg.co.uk/posts/incremental-compilation-internals/https://news.ycombinator.com/item?id=49085666Steel Bank Common Lisp version 2.6.7https://sbcl.org/all-news.html?2.6.7https://news.ycombinator.com/item?id=49086971Half-Life ported to Mac OS 9https://mac-classic.com/news/half-life-ported-to-mac-os-9/https://news.ycombinator.com/item?id=49089814Discovering Cryptographic Weaknesses with Claudehttps://www.anthropic.com/research/discovering-cryptographic-weaknesseshttps://news.ycombinator.com/item?id=49087091Una GPS smart watch – Repairable, USB-C charging, developer-friendlyhttps://unawatch.com/https://news.ycombinator.com/item?id=49084813 What is Hacker News Highlights? Daily overview of the Top 10 Hacker News posts. Post and comment summarization by AI.