Hacker News Highlights

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 website
https://elizabethtai.com/2026/06/10/substack-writers-you-need-a-website/
https://news.ycombinator.com/item?id=49086788Codex Security
https://github.com/openai/codex-security
https://news.ycombinator.com/item?id=49089755
Kimi K3 Architecture Overview and Notes
https://sebastianraschka.com/blog/2026/kimi-k3-architecture-notes.html
https://news.ycombinator.com/item?id=49085698
Delayed Gratification – Proud to Be 'Last to Breaking News'
https://www.slow-journalism.com/
https://news.ycombinator.com/item?id=49085731
Show HN: I was tired of opening 2 tabs for every HN link, so I made a userscript
https://github.com/twalichiewicz/HNewhere
https://news.ycombinator.com/item?id=49090607
Zig's Incremental Compilation Internals
https://mlugg.co.uk/posts/incremental-compilation-internals/
https://news.ycombinator.com/item?id=49085666
Steel Bank Common Lisp version 2.6.7
https://sbcl.org/all-news.html?2.6.7
https://news.ycombinator.com/item?id=49086971
Half-Life ported to Mac OS 9
https://mac-classic.com/news/half-life-ported-to-mac-os-9/
https://news.ycombinator.com/item?id=49089814
Discovering Cryptographic Weaknesses with Claude
https://www.anthropic.com/research/discovering-cryptographic-weaknesses
https://news.ycombinator.com/item?id=49087091
Una GPS smart watch – Repairable, USB-C charging, developer-friendly
https://unawatch.com/
https://news.ycombinator.com/item?id=49084813

This is a recap of the top 10 posts on Hacker News on Jul 28, 2026.Feel free to leave feedback on Github: https://github.com/denolfe/hacker-news-highlights

(00:00) - Intro

(00:17) - Our position on open-weights models

(01:50) - Benchmarking Opus 5 on SlopCodeBench

(03:07) - Using an open model feels surprisingly good

(04:21) - Paged Out #9 [pdf]

(05:56) - Watching Go's new garbage collector move through the heap

(06:54) - A $500 RL fine-tune of a 9B open model beat frontier models on catalog review

(08:26) - Self-contained highly-portable Python distributions

(09:40) - Ray tracing massive amounts of animated geometry using tetrahedral cages

(11:02) - Securing Services with Rootless Containers

(12:06) - RTX 2080 Ti Memory Upgrade to 22 GB

(13:18) - Outro

Our position on open-weights models
https://www.anthropic.com/news/position-open-weights-models
https://news.ycombinator.com/item?id=49076057Benchmarking Opus 5 on SlopCodeBench
https://github.com/humanlayer/advanced-context-engineering-for-coding-agents/blob/main/benchmarking-opus-5-on-slop-code-bench.md
https://news.ycombinator.com/item?id=49076391
Using an open model feels surprisingly good
https://matthewsaltz.com/blog/using-an-open-model-feels-surprisingly-good/
https://news.ycombinator.com/item?id=49078583
Paged Out #9 [pdf]
https://pagedout.institute/download/PagedOut_009.pdf
https://news.ycombinator.com/item?id=49070138
Watching Go's new garbage collector move through the heap
https://theconsensus.dev/p/2026/07/19/observing-gos-garbage-collector-old-and-new.html
https://news.ycombinator.com/item?id=49045474
A $500 RL fine-tune of a 9B open model beat frontier models on catalog review
https://fermisense.com/when-machines-take-the-wheel/
https://news.ycombinator.com/item?id=49078454
Self-contained highly-portable Python distributions
https://gregoryszorc.com/docs/python-build-standalone/main/
https://news.ycombinator.com/item?id=49073942
Ray tracing massive amounts of animated geometry using tetrahedral cages
https://gpuopen.com/learn/ray-tracing-massive-amounts-animated-geometry/
https://news.ycombinator.com/item?id=49021007
Securing Services with Rootless Containers
https://blog.coderspirit.xyz/blog/2026/07/06/securing-services-with-rootless-containers/
https://news.ycombinator.com/item?id=49021024
RTX 2080 Ti Memory Upgrade to 22 GB
https://gpusolutions.net/rbservices/graphics-card-upgrade/
https://news.ycombinator.com/item?id=49041256

This is a recap of the top 10 posts on Hacker News on Jul 27, 2026.Feel free to leave feedback on Github: https://github.com/denolfe/hacker-news-highlights

(00:00) - Intro

(00:16) - Kill The Cookie Banner

(01:33) - US citizen charged after GrapheneOS phone wipes during airport search

(02:45) - PGSimCity - How PostgreSQL Works

(03:40) - Htmx 4.0, the first JavaScript library to release exclusively on the Game Boy

(05:03) - French firefighters face 'pyrocumulonimbus' for first time

(06:01) - Decker, a platform that builds on the legacy of Hypercard and classic macOS

(07:19) - Show HN: Physically accurate black hole you can put in your room

(08:39) - Design is compromise

(09:55) - Show HN: Reverse Minesweeper

(11:06) - I learned PCB design, 3D printing and C just to listen to music

(12:19) - Outro

Kill The Cookie Banner
https://killthecookiebanner.eu/
https://news.ycombinator.com/item?id=49057175US citizen charged after GrapheneOS phone wipes during airport search
https://www.techspot.com/news/113236-us-prosecutors-charge-atlanta-man-after-grapheneos-phone.html
https://news.ycombinator.com/item?id=49063022
PGSimCity - How PostgreSQL Works
https://nikolays.github.io/PGSimCity/
https://news.ycombinator.com/item?id=49063754
Htmx 4.0, the first JavaScript library to release exclusively on the Game Boy
https://swag.htmx.org/en-cad/products/htmx-4-the-game
https://news.ycombinator.com/item?id=49057241
French firefighters face 'pyrocumulonimbus' for first time
https://www.france24.com/en/live-news/20260726-french-firefighters-face-pyrocumulonimbus-for-first-time
https://news.ycombinator.com/item?id=49060495
Decker, a platform that builds on the legacy of Hypercard and classic macOS
https://beyondloom.com/decker/
https://news.ycombinator.com/item?id=49060856
Show HN: Physically accurate black hole you can put in your room
https://blackhole.plav.in
https://news.ycombinator.com/item?id=49021270
Design is compromise
https://stephango.com/design-is-compromise
https://news.ycombinator.com/item?id=49059367
Show HN: Reverse Minesweeper
https://sunflowersgame.com/
https://news.ycombinator.com/item?id=49057666
I learned PCB design, 3D printing and C just to listen to music
https://pentaton.app/blog/2026-07-12-introducing-pentaton-lp/
https://news.ycombinator.com/item?id=49022355

This is a recap of the top 10 posts on Hacker News on Jul 26, 2026.Feel free to leave feedback on Github: https://github.com/denolfe/hacker-news-highlights

(00:00) - Intro

(00:19) - The new rules of context engineering for Claude 5 generation models

(01:33) - Turn And Face The Strange

(02:54) - JetZero

(04:00) - Show HN: Brolly, a plain-text weather forecast site

(05:06) - GM Backs Sodium Ion Batteries for U.S. Grid Storage

(06:26) - Show HN: I made some transistor animations

(07:25) - Running a 28.9M parameter LLM on an $8 microcontroller

(08:35) - LLM Usage in Debian: Three Proposals

(09:52) - Producing ammonia and fertiliser using wind power in Morris, Minnesota

(11:07) - Outro

The new rules of context engineering for Claude 5 generation models
https://claude.com/blog/the-new-rules-of-context-engineering-for-claude-5-generation-models
https://news.ycombinator.com/item?id=49051361Turn And Face The Strange
https://fly.io/blog/kurt-scott-money-sprites/
https://news.ycombinator.com/item?id=49051369
JetZero
https://www.jetzero.aero
https://news.ycombinator.com/item?id=49054224
Show HN: Brolly, a plain-text weather forecast site
https://brolly.sh/forecast/RWFP2qW8
https://news.ycombinator.com/item?id=49049693
GM Backs Sodium Ion Batteries for U.S. Grid Storage
https://spectrum.ieee.org/sodium-ion-battery-peak-energy
https://news.ycombinator.com/item?id=49051947
Show HN: I made some transistor animations
https://brandonli.net/semisim/animations
https://news.ycombinator.com/item?id=49039868
Running a 28.9M parameter LLM on an $8 microcontroller
https://github.com/slvDev/esp32-ai
https://news.ycombinator.com/item?id=49050512
LLM Usage in Debian: Three Proposals
https://www.debian.org/vote/2026/vote_002
https://news.ycombinator.com/item?id=49050859
Producing ammonia and fertiliser using wind power in Morris, Minnesota
https://ammoniaenergy.org/articles/flexible-renewable-ammonia-demonstrator-now-operational-in-minnesota/
https://news.ycombinator.com/item?id=49050735

This is a recap of the top 10 posts on Hacker News on Jul 25, 2026.Feel free to leave feedback on Github: https://github.com/denolfe/hacker-news-highlights

(00:00) - Intro

(00:21) - Claude Opus 5

(01:45) - Nvidia, Microsoft, Meta warn against overregulating open-weight models

(03:08) - India's first privately-developed rocket reaches orbit on debut launch

(04:31) - My security camera shipped a GitHub admin token in its login page

(05:54) - Firefox Containers Preview

(07:23) - Half-Life 2 running natively on HaikuOS

(08:36) - Postgres LISTEN/NOTIFY actually scales

(09:47) - IRGC claims it destroyed Amazon's Bahrain data center

(11:11) - Buz – A fork of Bun using modern Zig, with sub-1s incremental builds

(12:50) - Opus 5 is currently #1 on Artificial Analysis Intelligence Leaderboard

(14:18) - Outro

Claude Opus 5
https://www.anthropic.com/news/claude-opus-5
https://news.ycombinator.com/item?id=49038433Nvidia, Microsoft, Meta warn against overregulating open-weight models
https://www.cnbc.com/2026/07/24/nvidia-microsoft-meta-open-weight-ai-models.html
https://news.ycombinator.com/item?id=49035303
India's first privately-developed rocket reaches orbit on debut launch
https://arstechnica.com/space/2026/07/indias-first-privately-developed-rocket-reaches-orbit-on-dramatic-debut-launch/
https://news.ycombinator.com/item?id=48973835
My security camera shipped a GitHub admin token in its login page
https://hhh.hn/hanwha-github-token/
https://news.ycombinator.com/item?id=49034292
Firefox Containers Preview
https://blog.mozilla.org/en/firefox/firefox-containers-preview/
https://news.ycombinator.com/item?id=48995409
Half-Life 2 running natively on HaikuOS
https://discuss.haiku-os.org/t/haiku-nvidia-porting-nvidia-driver-for-turing-gpus/16520?page=18
https://news.ycombinator.com/item?id=49034868
Postgres LISTEN/NOTIFY actually scales
https://www.dbos.dev/blog/postgres-listen-notify-scalability
https://news.ycombinator.com/item?id=49040296
IRGC claims it destroyed Amazon's Bahrain data center
https://houseofsaud.com/irgc-claims-destroyed-amazon-bahrain-data-center/
https://news.ycombinator.com/item?id=49033240
Buz – A fork of Bun using modern Zig, with sub-1s incremental builds
https://ziggit.dev/t/buz-a-drop-in-replacement-for-bun-using-modern-zig-with-sub-1s-incremental-builds/16891
https://news.ycombinator.com/item?id=49033099
Opus 5 is currently #1 on Artificial Analysis Intelligence Leaderboard
https://artificialanalysis.ai/models
https://news.ycombinator.com/item?id=49040741