12.13.25 | Apple ID locked, macOS 26.2 fast AI clusters, OpenAI adopts skills in ChatGPT and Codex CLI

Update: 2025-12-13

Description

This is a recap of the top 10 posts on Hacker News on Dec 13, 2025.

Feel free to leave feedback on Github: https://github.com/denolfe/hacker-news-highlights

(00:00 ) - Intro

(00:20 ) - Apple has locked my Apple ID, and I have no recourse. A plea for help

(01:24 ) - macOS 26.2 enables fast AI clusters with RDMA over Thunderbolt

(02:37 ) - OpenAI are quietly adopting skills, now available in ChatGPT and Codex CLI

(03:42 ) - Koralm Railway

(04:41 ) - Sick of smart TVs? Here are your best options

(05:53 ) - Rats Play DOOM

(06:47 ) - GNU Unifont

(08:00 ) - String theory inspires a brilliant, baffling new math proof

(09:11 ) - Show HN: I made a spreadsheet where formulas also update backwards

(10:25 ) - Show HN: Tiny VM sandbox in C with apps in Rust, C and Zig

(11:29 ) - Outro

Apple has locked my Apple ID, and I have no recourse. A plea for help
https://hey.paris/posts/appleid/
https://news.ycombinator.com/item?id=46252114

macOS 26.2 enables fast AI clusters with RDMA over Thunderbolt
https://developer.apple.com/documentation/macos-release-notes/macos-26_2-release-notes#RDMA-over-Thunderbolt
https://news.ycombinator.com/item?id=46248644

OpenAI are quietly adopting skills, now available in ChatGPT and Codex CLI
https://simonwillison.net/2025/Dec/12/openai-skills/
https://news.ycombinator.com/item?id=46250332

Koralm Railway
https://infrastruktur.oebb.at/en/projects-for-austria/railway-lines/southern-line-vienna-villach/koralm-railway
https://news.ycombinator.com/item?id=46242871

Sick of smart TVs? Here are your best options
https://arstechnica.com/gadgets/2025/12/the-ars-technica-guide-to-dumb-tvs/
https://news.ycombinator.com/item?id=46243655

Rats Play DOOM
https://ratsplaydoom.com/
https://news.ycombinator.com/item?id=46248323

GNU Unifont
https://unifoundry.com/unifont/index.html
https://news.ycombinator.com/item?id=46248859

String theory inspires a brilliant, baffling new math proof
https://www.quantamagazine.org/string-theory-inspires-a-brilliant-baffling-new-math-proof-20251212/
https://news.ycombinator.com/item?id=46245622

Show HN: I made a spreadsheet where formulas also update backwards
https://victorpoughon.github.io/bidicalc/
https://news.ycombinator.com/item?id=46234734

Show HN: Tiny VM sandbox in C with apps in Rust, C and Zig
https://github.com/ringtailsoftware/uvm32
https://news.ycombinator.com/item?id=46249538

Comments

In Channel

12.19.25 | ACM publications to be open access in 2026, supply-chain attack on X, Vercel, Cursor, and Discord, Texas suing TV makers for spying

2025-12-1912:18

12.18.25 | Gemini 3 Flash focuses on speed, AWS CEO criticizes replacing junior devs with AI, HN experienced downtime

2025-12-1811:54

12.17.25 | alpr.watch, GitHub Actions pricing changes, No Graphics API

2025-12-1712:05

12.16.25 | Kenyan writer contrasts style with ChatGPT, 8M users' AI chats exploited by extensions, Pepsi and Walmart colluded on food prices

2025-12-1611:46

12.15.25 | Hashcards is a spaced repetition system, elevated errors in models, Ask HN about December 2025 projects

2025-12-1511:13

12.14.25 | Stranger kindness, VPN location discrepancies, improving AI programming skills

2025-12-1411:48

12.13.25 | Apple ID locked, macOS 26.2 fast AI clusters, OpenAI adopts skills in ChatGPT and Codex CLI

2025-12-1311:34

12.12.25 | GPT-5.2 release, highest quality codebase, French supermarket's successful Christmas advert

2025-12-1211:45

12.11.25 | Life's dimensions, Australia enforces teen social media ban, Valve reports HDMI Forum blocks HDMI 2.1 for Linux

2025-12-1111:32

12.10.25 | Gemini Pro 3 imagines future HN front page, Let's Encrypt celebrates 10 years, Mistral launches Devstral2 and Vibe CLI

2025-12-1011:54

12.9.25 | Icons in menus, AI progress steady, IBM acquires Confluent

2025-12-0912:22

12.8.25 | Google Titans architecture enhances AI memory, failed attempt to recreate 1996 Space Jam website, dollar-stores overcharge despite low price promises

2025-12-0811:55

12.7.25 | GrapheneOS offers complete security patches, Tiny Core Linux is a 23 MB graphical distro, LLMs utilized at Oxide

2025-12-0711:54

12.6.25 | Netflix acquires Warner Bros, Cloudflare outage December 5, 2025, Gemini 3 Pro advances vision AI

2025-12-0611:34

12.5.25 | Cloudflare outage, Stanford students' disability claims, elites influencing mass preferences with AI

2025-12-0511:07

12.4.25 | Ghostty becomes non-profit, Seattle's disdain for AI, Valve's role in Windows games on Arm

2025-12-0411:40

12.3.25 | Anthropic acquires Bun, OpenAI issues 'code red' over Google, IBM CEO doubts AI data center ROI

2025-12-0312:07

12.2.25 | DeepSeek-v3.2 advances open language models, India mandates preloaded cyber safety app, Ghostty compiles to WASM with xterm.js compatibility

2025-12-0210:48

12.1.25 | Advent of Code 2025, tips for writing Claude.md, Windows drive letters beyond A-Z

2025-12-0110:25

11.30.25 | OpenAI preparing ChatGPT ads, One breakthrough needed, Bazzite for Linux gaming

2025-11-3011:23

00:00

12.13.25 | Apple ID locked, macOS 26.2 fast AI clusters, OpenAI adopts skills in ChatGPT and Codex CLI

#box-pro-ellipsis-176616940681825{-webkit-line-clamp:2;}12.13.25 | Apple ID locked, macOS 26.2 fast AI clusters, OpenAI adopts skills in ChatGPT and Codex CLI

12.13.25 | Apple ID locked, macOS 26.2 fast AI clusters, OpenAI adopts skills in ChatGPT and Codex CLI

Hacker News Highlights

12.13.25 | Apple ID locked, macOS 26.2 fast AI clusters, OpenAI adopts skills in ChatGPT and Codex CLI