Hacker News Highlights

This is a recap of the top 10 posts on Hacker News on Jul 20, 2026.Feel free to leave feedback on Github: https://github.com/denolfe/hacker-news-highlights

(00:00) - Intro

(00:18) - Show HN: I replaced a $120k bowling center system with $1,600 in ESP32s

(01:52) - Qwen 3.8

(03:11) - Claude Code uses Bun written in Rust now

(04:43) - What I learned selling 2,500 MIDI recorders: Hardware is not so hard

(05:57) - Claude Fable produced a counterexample to the Jacobian Conjecture

(07:17) - Minecraft: Java Edition now uses SDL3

(08:28) - I joined the IndieWeb, here's what I learned

(09:39) - Orion Browser by Kagi

(10:58) - The Zen of Parallel Programming

(12:09) - Bananas sprout in Rayleigh Garden UK after 15 years

(13:14) - Outro

Show HN: I replaced a $120k bowling center system with $1,600 in ESP32s
https://news.ycombinator.com/item?id=48968606Qwen 3.8
https://twitter.com/Alibaba_Qwen/status/2078759124914098291
https://news.ycombinator.com/item?id=48966120
Claude Code uses Bun written in Rust now
https://simonwillison.net/2026/Jul/19/claude-code-in-bun-in-rust/
https://news.ycombinator.com/item?id=48966569
What I learned selling 2,500 MIDI recorders: Hardware is not so hard
https://chipweinberger.com/articles/20260719-hardware-is-not-so-hard
https://news.ycombinator.com/item?id=48966713
Claude Fable produced a counterexample to the Jacobian Conjecture
https://xcancel.com/__alpoge__/status/2079028340955197566
https://news.ycombinator.com/item?id=48973869
Minecraft: Java Edition now uses SDL3
https://www.minecraft.net/en-us/article/minecraft-26-3-snapshot-4
https://news.ycombinator.com/item?id=48967256
I joined the IndieWeb, here's what I learned
https://en.andros.dev/blog/0b8e451e/i-joined-the-indieweb-heres-what-i-learned/
https://news.ycombinator.com/item?id=48966984
Orion Browser by Kagi
https://orionbrowser.com/
https://news.ycombinator.com/item?id=48970894
The Zen of Parallel Programming
https://smolnero.com/posts/the-zen-of-parallel-programming
https://news.ycombinator.com/item?id=48907390
Bananas sprout in Rayleigh Garden UK after 15 years
https://www.bbc.com/news/articles/cvg8edqq5g5o
https://news.ycombinator.com/item?id=48968063

This is a recap of the top 10 posts on Hacker News on Jul 19, 2026.Feel free to leave feedback on Github: https://github.com/denolfe/hacker-news-highlights

(00:00) - Intro

(00:20) - GPT-5.6 used a prompt to close a 30-year gap in convex optimization

(01:53) - Mayor Mamdani Says Landlords Can't Use AI Images to Advertise

(03:21) - Speech Recognition and TTS in less than 500kb

(04:33) - Transcribe.cpp

(05:53) - If You Build It, They Will Come

(07:05) - The Kimi K3 Moment

(08:26) - Fable 5 vs. GPT-5.6 Sol on an NP-Hard Problem: Does /goal help?

(09:56) - Gleam Is Now on Tangled

(11:15) - Setting up your spare Mac for Claude Code to control, a step-by-step guide

(12:29) - Elixir-lang.org has a new design

(13:36) - Outro

GPT-5.6 used a prompt to close a 30-year gap in convex optimization
https://old.reddit.com/r/math/comments/1uxj3cy/after_openais_cdc_proof_announcement_gpt56_used_a/
https://news.ycombinator.com/item?id=48957779Mayor Mamdani Says Landlords Can't Use AI Images to Advertise
https://petapixel.com/2026/07/16/mayor-mamdani-says-landlords-cant-secretly-use-ai-images-to-advertise-properties/
https://news.ycombinator.com/item?id=48962983
Speech Recognition and TTS in less than 500kb
https://github.com/moonshine-ai/moonshine/tree/main/micro
https://news.ycombinator.com/item?id=48911793
Transcribe.cpp
https://workshop.cjpais.com/projects/transcribe-cpp
https://news.ycombinator.com/item?id=48963879
If You Build It, They Will Come
https://www.benlandautaylor.com/p/if-you-build-it-they-will-come
https://news.ycombinator.com/item?id=48959090
The Kimi K3 Moment
https://stephen.bochinski.dev/blog/2026/07/18/the-kimi-k3-moment/
https://news.ycombinator.com/item?id=48960218
Fable 5 vs. GPT-5.6 Sol on an NP-Hard Problem: Does /goal help?
https://charlesazam.com/blog/fable-5-gpt-5-6-sol-goal/
https://news.ycombinator.com/item?id=48956879
Gleam Is Now on Tangled
https://tangled.org/gleam.run/gleam
https://news.ycombinator.com/item?id=48959143
Setting up your spare Mac for Claude Code to control, a step-by-step guide
https://ykdojo.github.io/claude-controls-mac/
https://news.ycombinator.com/item?id=48959392
Elixir-lang.org has a new design
https://elixir-lang.org/
https://news.ycombinator.com/item?id=48959042

This is a recap of the top 10 posts on Hacker News on Jul 18, 2026.Feel free to leave feedback on Github: https://github.com/denolfe/hacker-news-highlights

(00:00) - Intro

(00:20) - AWS: Inaccurate Estimated Billing Data – $1.7 billion

(01:49) - Thanks HN for 15 years of support and helping me find my life's work

(03:12) - Kaiser nurses say AI, workplace surveillance are making their jobs, care worse

(04:31) - First atmosphere found on Earth-like planet in habitable zone of distant star

(05:59) - The state of open source AI

(07:31) - Kimi K3, and what we can still learn from the pelican benchmark

(09:15) - Three ways people respond to a problem (other than solving it)

(10:37) - Learning a few things about running SQLite

(11:59) - The Zilog Z80 has turned 50

(13:08) - FAA lets Boeing sign off on 737 MAX, 787 airworthiness certificates again

(14:33) - Outro

AWS: Inaccurate Estimated Billing Data – $1.7 billion
https://news.ycombinator.com/item?id=48945241Thanks HN for 15 years of support and helping me find my life's work
https://news.ycombinator.com/item?id=48949551
Kaiser nurses say AI, workplace surveillance are making their jobs, care worse
https://localnewsmatters.org/2026/07/15/kaiser-nurses-say-ai-workplace-surveillance-are-making-their-jobs-and-patient-care-worse/
https://news.ycombinator.com/item?id=48952880
First atmosphere found on Earth-like planet in habitable zone of distant star
https://www.bbc.com/news/articles/cy4kdd1e0ejo
https://news.ycombinator.com/item?id=48947560
The state of open source AI
https://stateofopensource.ai/
https://news.ycombinator.com/item?id=48947825
Kimi K3, and what we can still learn from the pelican benchmark
https://simonwillison.net/2026/Jul/16/kimi-k3/
https://news.ycombinator.com/item?id=48947717
Three ways people respond to a problem (other than solving it)
https://improvesomething.today/responses-to-problems/
https://news.ycombinator.com/item?id=48947490
Learning a few things about running SQLite
https://jvns.ca/blog/2026/07/17/learning-about-running-sqlite/
https://news.ycombinator.com/item?id=48950122
The Zilog Z80 has turned 50
https://goliath32.com/blog/z80.html
https://news.ycombinator.com/item?id=48951461
FAA lets Boeing sign off on 737 MAX, 787 airworthiness certificates again
https://www.cnbc.com/2026/07/17/faa-boeing-737-max-787.html
https://news.ycombinator.com/item?id=48952439

This is a recap of the top 10 posts on Hacker News on Jul 17, 2026.Feel free to leave feedback on Github: https://github.com/denolfe/hacker-news-highlights

(00:00) - Intro

(00:18) - Kimi K3: Open Frontier Intelligence

(01:40) - Microsoft Comic Chat is now open source

(02:59) - Decoy Font

(03:52) - NotebookLM is now Gemini Notebook

(05:08) - $100 AI Music Video: Claude Fable 5 vs. GPT-5.6 Sol

(06:24) - LM Studio Bionic: the AI agent for open models

(07:38) - The LLM Critics Are Right. I Use LLMs Anyway

(09:08) - Immersive Linear Algebra Book with Interactive Figures (2015)

(10:19) - Detecting LLM-Generated Texts with “Classical” Machine Learning

(11:50) - The human-in-the-loop is tired

(13:15) - Outro

Kimi K3: Open Frontier Intelligence
https://www.kimi.com/blog/kimi-k3
https://news.ycombinator.com/item?id=48935342Microsoft Comic Chat is now open source
https://opensource.microsoft.com/blog/2026/07/16/microsoft-comic-chat-is-now-open-source/
https://news.ycombinator.com/item?id=48936426
Decoy Font
https://www.mixfont.com/experiments/decoy-font
https://news.ycombinator.com/item?id=48936584
NotebookLM is now Gemini Notebook
https://blog.google/innovation-and-ai/products/gemini-notebook/notebooklm-gemini-notebook/
https://news.ycombinator.com/item?id=48936451
$100 AI Music Video: Claude Fable 5 vs. GPT-5.6 Sol
https://www.tryai.dev/blog/ai-music-video-arena-claude-vs-gpt-5.6
https://news.ycombinator.com/item?id=48939524
LM Studio Bionic: the AI agent for open models
https://lmstudio.ai/blog/introducing-lm-studio-bionic
https://news.ycombinator.com/item?id=48939662
The LLM Critics Are Right. I Use LLMs Anyway
https://www.theocharis.dev/blog/llm-critics-are-right-i-use-llms-anyway/
https://news.ycombinator.com/item?id=48933310
Immersive Linear Algebra Book with Interactive Figures (2015)
https://immersivemath.com/ila/
https://news.ycombinator.com/item?id=48935951
Detecting LLM-Generated Texts with “Classical” Machine Learning
https://blog.lyc8503.net/en/post/llm-classifier/
https://news.ycombinator.com/item?id=48936880
The human-in-the-loop is tired
https://pydantic.dev/articles/the-human-in-the-loop-is-tired
https://news.ycombinator.com/item?id=48942000

This is a recap of the top 10 posts on Hacker News on Jul 16, 2026.Feel free to leave feedback on Github: https://github.com/denolfe/hacker-news-highlights

(00:00) - Intro

(00:18) - Inkling: Our Open-Weights Model

(01:51) - Stripe and Advent have made a joint offer to acquire PayPal – sources

(02:53) - Grok Build is open source

(04:15) - Running Gemma 4 26B at 5 tokens/sec on a 13-year-old Xeon with no GPU

(05:49) - SQLite should have (Rust-style) editions

(07:02) - Collection of Digital Clock Designs

(07:51) - The lost joy of music piracy

(09:08) - Governments, companies, nonprofits should invest in free, open source AI [pdf]

(10:28) - I also filed the corners off my MacBook

(11:33) - Duskers, the scary command line game, is getting a sequel

(12:43) - Outro

Inkling: Our Open-Weights Model
https://thinkingmachines.ai/news/introducing-inkling/
https://news.ycombinator.com/item?id=48924912Stripe and Advent have made a joint offer to acquire PayPal – sources
https://www.reuters.com/business/finance/stripe-advent-offer-buy-paypal-more-than-53-billion-sources-say-2026-07-15/
https://news.ycombinator.com/item?id=48915953
Grok Build is open source
https://github.com/xai-org/grok-build
https://news.ycombinator.com/item?id=48926590
Running Gemma 4 26B at 5 tokens/sec on a 13-year-old Xeon with no GPU
https://www.neomindlabs.com/2026/06/08/running-gemma-4-26b-at-5-tokens-sec-on-a-13-year-old-xeon-with-no-gpu/
https://news.ycombinator.com/item?id=48922434
SQLite should have (Rust-style) editions
https://mort.coffee/home/sqlite-editions/
https://news.ycombinator.com/item?id=48928135
Collection of Digital Clock Designs
https://clocks.dev
https://news.ycombinator.com/item?id=48923380
The lost joy of music piracy
https://www.pigeonsandplanes.com/read/music-piracy-what-cd-oink-nine-inch-nails-streaming
https://news.ycombinator.com/item?id=48930454
Governments, companies, nonprofits should invest in free, open source AI [pdf]
https://www.siegelendowment.org/wp-content/uploads/2026/07/fortune-david-siegel-open-source-ai.pdf
https://news.ycombinator.com/item?id=48927095
I also filed the corners off my MacBook
https://www.brt.fyi/posts/mac-book-filing/
https://news.ycombinator.com/item?id=48911803
Duskers, the scary command line game, is getting a sequel
https://elbowgreasegames.substack.com/p/misfits-attic-announces-duskers-20
https://news.ycombinator.com/item?id=48925888