The 500k-ton typo: Why data center copper math doesn't add up

36 thebeardisred 2026-01-15 13:10:57 UTC investinglive.com Llama Share 37

A technical paper from Nvidia claimed a 1 GW data center would require 500,000 tons of copper, sparking a copper bull case. However, the figure is likely a typo, with the correct amount being around 226 tons, still indicating a potential undersupply issue.

A letter to those who fired tech writers because of AI

221 theletterf 2026-01-15 08:10:57 UTC passo.uno Llama Share 133

Replacing human technical writers with AI tools is a flawed strategy because AI lacks empathy, vision, and the ability to capture subtleties in product documentation. Human technical writers are essential for creating high-quality documentation that accurately represents a product, and AI should be used to augment their work, not replace it.

The URL shortener that makes your links look as suspicious as possible

516 dreadsword 2026-01-15 04:10:57 UTC creepylink.com Full Share 104

The URL shortener that makes your links look as suspicious as possible. Normal links are too trustworthy. Make them creepy.

Claude Cowork exfiltrates files

733 takira 2026-01-14 21:10:57 UTC promptarmor.com Llama Share 326

Anthropic's Claude Cowork is vulnerable to file exfiltration attacks via indirect prompt injection due to unremediated isolation flaws. Users are recommended to be cautious when granting access to local files and avoid suspicious actions that may indicate prompt injection.

Raspberry Pi's New AI Hat Adds 8GB of RAM for Local LLMs

157 ingve 2026-01-15 09:10:57 UTC jeffgeerling.com Llama Share 114

Raspberry Pi's new $130 AI HAT+ 2 includes a Hailo 10H chip and 8 GB of LPDDR4X RAM, allowing for standalone LLMs and freeing the Pi's CPU. It's useful for power-constrained applications with both vision processing and inferencing, but its performance is limited by its 8 GB RAM.

The 3D Software Rendering Technology of 1998's Thief: The Dark Project (2019)

27 suioir 2026-01-15 11:10:57 UTC nothings.org Llama Share 7

Sean Barrett, the primary author of the core rendering technology in Thief, describes the game's rendering engine, which used a portal-and-cell idea for visibility and occlusion, and was written contemporaneously with Quake. The Thief engine, which was software-rendered, used a breadth-first traversal of portals and cells to determine what part of the level was visible and needed rendering, ...

Test your square brackets

28 speckx 2026-01-15 11:10:57 UTC fluca1978.github.io Llama Share 18

The user forgot the story behind the [ ... ] test line in shell scripting and remembered that it was originally written as test(1) command. The [ ... ] syntax is a shortcut for the test command, which checks for the closing bracket as its last argument if invoked as [ .

Z80 Mem­ber­ship Card

50 exvi 2026-01-15 09:10:57 UTC sunrise-ev.com Llama Share 14

The Z80 Membership Card is a retro-style microcomputer that fits in an Altoids tin, allowing users to build and program their own computer. It comes with a kit, manual, and parts to create a classic 8-bit computer with CP/M operating system.

Impeccable Style

20 noemit 2026-01-15 12:10:57 UTC impeccable.style Llama Share 9

Anthropic's frontend-design skill was built upon with curated patterns and 17 commands. Extract the ZIP to apply the skill and commands, or use the skill explicitly in your prompt.

Jiga (YC W21) Is Hiring Full Stack Engineers

0 2026-01-15 12:10:57 UTC jiga.io Llama Share

Jiga streamlines product sourcing by connecting engineers with vetted manufacturers and automating administrative tasks. This saves time and reduces costs, allowing engineers to focus on actual work.

Ask HN: How are you doing RAG locally?

232 tmaly 2026-01-15 02:10:57 UTC news.ycombinator.com Llama Share 97

People are using BM25+trigram for code search due to its speed and effectiveness. Some use static embedding models like Lee101/Gobed for faster search, but they require training and may not always be ideal.

Ask HN: Share your personal website

692 susam 2026-01-14 17:10:57 UTC news.ycombinator.com Llama Share 1907

User is creating a community-maintained directory of personal websites at hnpwd.github.io and needs help to grow it. They want users to share their personal websites and consider joining the GitHub project as a maintainer.

French Court Orders Popular VPNs to Block More Pirate Sites, Despite Opposition

19 iamnothere 2026-01-15 13:16:57 UTC torrentfreak.com Llama Share 7

The Paris Judicial Court has ordered VPN providers to block access to pirate sports streaming sites in France, citing that they help users bypass existing site-blocking measures. The order targets ProtonVPN, NordVPN, Cyberghost, Surfshark, and ExpressVPN, requiring them to block 13 initial domains and potentially more.

San Remo Pasta Measurer

25 surprisetalk 2026-01-15 10:10:57 UTC toxel.com Llama Share 14

San Remo Pasta Packaging with built-in measurer reduces food waste and ensures portion control. It eliminates the need for external tools, making dinner easier with accurate serving sizes.

Show HN: MailPilot – Freedom to go anywhere while your agents work

14 keepamovin 2026-01-15 12:10:57 UTC news.ycombinator.com Llama Share 15

Mailpilot is a tool that lets you email your AI agents and receive their responses, enabling you to work remotely. It also allows you to CC team members, creating an async multiplayer thread with your AI agents.

Photos Capture the Breathtaking Scale of China's Wind and Solar Buildout

214 mrtksn 2026-01-15 10:10:57 UTC e360.yale.edu Llama Share 141

China installed over half of global wind and solar energy last year, with massive buildouts across the country. Photographer Weimin Chu captured the shift with drone photos, featured in an award-winning Greenpeace exhibition.

Scaling long-running autonomous coding

231 samwillis 2026-01-14 23:10:57 UTC cursor.com Llama Share 138

We've developed a system of hundreds of concurrent agents that can work together on a single codebase for weeks, making real progress on ambitious projects. Our system uses a pipeline with distinct roles, including planners and workers, to coordinate tasks and avoid conflicts.

Ask HN: What did you find out or explore today?

136 blahaj 2026-01-15 03:10:57 UTC news.ycombinator.com Llama Share 220

You're renovating an old agricultural machine shed using historic pipeline sections as support poles and researching the pipeline's history. Your parrot is laying an egg and you're providing care and food to support her.

Ideas are cheap, execution is cheaper

4 grncdr 2026-01-15 13:10:57 UTC davekiss.com Prefix Share 0

Remember when coming up with a great idea was the easy part? Ideas were worthless. What was valuable was the commitment. The grit. The planning, the technical prowess, the unwavering ability to think night and day about a product, a problem space, incessantly obsessing, unsatisfied until you had some semblance of a working solution. It took hustle, brain power, studying, iteration, failures. ...

New Safari developer tools provide insight into CSS Grid Lanes

90 feross 2026-01-15 04:10:57 UTC webkit.org Llama Share 50

Safari Technology Preview 234 and 235 support CSS Grid Lanes for masonry-style layouts. The Grid Lanes Inspector in Safari shows content order with "Order Numbers" feature.

Python: Tprof, a Targeting Profiler

26 jonatron 2026-01-15 09:10:57 UTC adamj.eu Llama Share 0

tprof is a targeting profiler for Python 3.12+ that measures time spent in specified target functions, ideal for comparing before and after optimizations. It uses sys.monitoring and C timing to minimize overhead and provides a quick report on the command line or via a Python API.

Handy – Free open source speech-to-text app

142 tin7in 2026-01-15 06:10:57 UTC github.com/cjpais Llama Share 78

Handy is a cross-platform, open source speech-to-text tool built with Tauri, providing private and simple transcription without cloud reliance. It's designed to be extensible and forkable, allowing users to customize and contribute to its development.

Bubblewrap: A nimble way to prevent agents from accessing your .env files

126 0o_MrPatrick_o0 2026-01-15 02:10:57 UTC patrickmccanna.net Llama Share 97

The user proposes using Bubblewrap to sandbox coding agents like Claude Code, providing a more secure and simpler alternative to dedicated user accounts and Docker. Bubblewrap allows running untrusted code without risking the host system, and the user provides a test script to demonstrate its usage.

The State of OpenSSL for pyca/cryptography

165 SGran 2026-01-14 22:10:57 UTC cryptography.io Llama Share 36

Paul Kehrer and Alex Gaynor are reducing their reliance on OpenSSL due to performance regressions, API complexity, and lack of testing. They plan to add new APIs only available on LibreSSL/BoringSSL/AWS-LC and consider switching to one of these forks for their binary wheels.

Crafting Interpreters

154 tosh 2026-01-14 23:10:57 UTC craftinginterpreters.com Llama Share 30

Crafting Interpreters teaches you to design and build a full-featured scripting language from scratch. It covers high-level concepts and gritty details like bytecode and garbage collection in a few thousand lines of clean code.

Furiosa: 3.5x efficiency over H100s

189 written-beyond 2026-01-15 01:10:57 UTC furiosa.ai Llama Share 128

FuriosaAI's NXT RNGD Server is a turnkey AI inference solution with high performance and low power consumption. It allows enterprises to deploy AI workloads efficiently within existing data centers without prohibitive energy costs.

Bare metal programming with RISC-V guide (2023)

45 todsacerdoti 2026-01-15 06:10:57 UTC popovicu.com Llama Share 8

A bare metal program for a RISC-V machine is created by writing ELF instructions that load into memory at address 0x80000000. The program sends a string 'hello' to the user through a virtual UART device at address 0x10000000.

Show HN: Sparrow-1 – Audio-native model for human-level turn-taking without ASR

87 code_brian 2026-01-15 04:10:57 UTC tavus.io Llama Share 19

Sparrow-1 is a conversational flow control model that predicts when a system should listen, wait, or speak in real-time, enabling human-like timing in conversational AI. It models conversational uncertainty directly and responds with precision, allowing interactions to feel attentive, patient, and natural.

SparkFun Officially Dropping AdaFruit due to CoC Violation

480 yaleman 2026-01-14 15:10:57 UTC sparkfun.com Llama Share 479

SparkFun has ended transactions with Adafruit due to Code of Conduct violations including offensive emails and material. SparkFun continues to support its reseller network for original products and other items.

Find a pub that needs you

335 thinkingemote 2026-01-14 16:10:57 UTC ismypubfucked.com Llama Share 306

The government may reverse pub rate changes, but pubs still need support. Find your local pub and use the Fucked Pub Index to identify the one that needs your help the most.