top 50% hacker news stories for 2026-07-19

Show HN: I replaced a $120k bowling center system with $1,600 in ESP32s

https://news.ycombinator.com/item?id=48968606

3 months ago

Qwen3.8 is launching and going open-weight soon

https://twitter.com/Alibaba_Qwen/status/2078759124914098291

3 months ago

Transcribe.cpp

https://workshop.cjpais.com/projects/transcribe-cpp

3 months ago

Claude Code uses Bun written in Rust now

https://simonwillison.net/2026/Jul/19/claude-code-in-bun-in-rust/

3 months ago

What I learned selling 2,500 MIDI recorders: Hardware is not so hard

https://chipweinberger.com/articles/20260719-hardware-is-not-so-hard

3 months ago

AI Mania Is Eviscerating Global Decision-Making

https://ludic.mataroa.blog/blog/ai-mania-is-eviscerating-global-decision-making/#fnref:3

3 months ago

OpenAI reduces Codex Model Context Size from 372k to 272k

https://github.com/openai/codex/pull/33972/files

3 months ago

★ 101.5k Rust Apache-2.0

AI advice made people 3x less accurate but 2x confident, researchers found

https://thenextweb.com/news/ai-advice-suppresses-critical-thinking-wrong-answers-study

3 months ago

Minecraft: Java Edition now uses SDL3

https://www.minecraft.net/en-us/article/minecraft-26-3-snapshot-4

3 months ago

Better and Cheaper Than IPTV

https://github.com/stupside/castor

3 months ago

★ 1.9k Go MIT

Orion Browser by Kagi

https://orionbrowser.com/

3 months ago

Moonshot AI suspends new subscriptions due to Kimi K3 demand

https://twitter.com/kimi_moonshot/status/2078855608565207130

3 months ago

Introduction to Formal Verification with Lean Part 1

https://hashcloak.com/blog/tutorial-introduction-to-formal-verification-with-lean-(part-1)

3 months ago

I joined the IndieWeb, here's what I learned

https://en.andros.dev/blog/0b8e451e/i-joined-the-indieweb-heres-what-i-learned/

3 months ago

The Last MPEG-4 Visual Patent Has Expired

https://www.phoronix.com/news/Last-MPEG-4-Patent-Expired

3 months ago

Qwen 3.8 Max Preview

https://www.qwencloud.com/pricing/token-plan

3 months ago

We want Texans to know their rights

https://www.eff.org/deeplinks/2026/07/we-want-texans-know-their-rights-qa-mayday-health-impact-surveillance-abortion

3 months ago

Bananas sprout in Rayleigh Garden UK after 15 years

https://www.bbc.com/news/articles/cvg8edqq5g5o

3 months ago

I burned all my tokens researching how to save tokens

https://quesma.com/blog/custom-deep-research-pipeline/

3 months ago

HomeLab #1: MikroTik as a Home Router

https://justsomebody.dev/blog/mikrotik-home-router

3 months ago

Texas Police Spent $4.5M on Four Chevy Tahoes

https://www.thedrive.com/news/how-texas-police-spent-4-5-million-on-four-chevy-tahoes

3 months ago

ECC and DDR5

https://etbe.coker.com.au/2026/07/19/ecc-ddr5/

3 months ago

The death and rebirth of my home server

https://sgt.hootr.club/blog/home-server-rebirth/

3 months ago

Ollama: All Aboard Open Models

https://ollama.com/blog/all-aboard-open-models

3 months ago

Terence McKenna's Mega Bad Trip

https://psychedelics.community/cultural-icons/terence-mckennas-mega-bad-trip

3 months ago

Modder Runs GTA III Inside GTA: San Andreas on an In-Game TV

https://videocardz.com/newz/modder-runs-gta-iii-inside-gta-san-andreas-on-an-in-game-tv

3 months ago

Heavy TV watching associated with smaller brain structures, study finds

https://dornsife.usc.edu/news/stories/heavy-tv-watching-associated-with-smaller-brain-structures/

3 months ago

FDA approves new kind of cholesterol pill

https://www.fda.gov/news-events/press-announcements/fda-approves-first-oral-pcsk9-inhibitor-lower-ldl-cholesterol-adults-high-cholesterol

3 months ago

Nvidia DGX Spark as a daily driver

https://daniel.lawrence.lu/blog/2026-07-15-dgx-spark-as-daily-driver/

3 months ago

Americans are angry about data centers. Politicians are feeling the pressure

https://www.reuters.com/world/us/americans-are-angry-about-data-centers-politicians-are-feeling-pressure-2026-07-16/

3 months ago

Ask HN: What are your favorite blogs not about AI?

https://news.ycombinator.com/item?id=48972858

3 months ago

Clever hacker fits 537,000 domains in a $5 ESP32 ad-blocking dongle

https://www.tomshardware.com/networking/clever-hacker-fits-537-000-domains-in-a-tiny-usd5-esp32-ad-blocking-dongle-firmware-uses-only-around-50kb-of-ram-and-can-answer-blocked-lookups-in-10-milliseconds

3 months ago

The Art of Insight in Science and Engineering – Mastering Complexity(2014) [pdf]

https://ocw.mit.edu/courses/res-6-011-the-art-of-insight-in-science-and-engineering-mastering-complexity-fall-2014/3bca850386a3005c22134fa62fb3bad5_MITRES_6-011F14_art_insfin.pdf

3 months ago

OpenStreetMap: Admin_level for All Countries

https://wiki.openstreetmap.org/wiki/Tag:boundary%3Dadministrative#Table_:_Admin_level_for_all_countries

3 months ago

HMD Touch 4G

https://www.hmd.com/en_int/hmd-touch-4g

3 months ago

C64 Basic Dungeon Crawler: Goblin Attack (C64 Basic Part 8)

https://retrogamecoders.com/c64-basic-dungeon-part8/

3 months ago

A new Intel Itanium (IA-64) emulator that boots Windows

https://raymii.org/s/blog/Intel_Itanium_IA-64-Emulator_that_boots_Windows.html

3 months ago

Biggest Probabilistic Computer Turns Noise into Answers

https://spectrum.ieee.org/biggest-probabilistic-computer

3 months ago

Natural experiments prove phytoplankton carbon removal works

https://www.onepercentbrighter.com/p/natural-experiments-prove-feeding

3 months ago

How to Abandon Your Climate Commitments and Get Away with It

https://www.nytimes.com/2026/07/17/climate/company-climate-change-commitments-renege.html

3 months ago