Logging Sucks
Your logs are lying to you. Not maliciously. They’re just not equipped to tell the truth. You’ve probably spent hours grep-ing through logs trying to understand why a user couldn’t check out, why that webhook failed, or why your p99 latency spiked at 3am. You found nothing useful. Just timestamps and vague messages that mock […]
Ask HN: Resources to get better at outbound sales?
Hi! I run a small custom software company in Michigan. I want to get better at outbound sales beyond just cold emailing or messaging people through LinkedIn. We’re about to start publishing case studies and doing some outreach, so I want to take some time to study outbound sales and improve my skills. Any recommended […]
Get an AI code review in 10 seconds
Here’s a trick I don’t see enough people using: Add .diff to the end of any PR URL and copy&paste into a LLM You can get an instant feedback on any GitHub PR. No Copilot Enterprise. No browser extensions. No special tooling. That’s it. Example PR Link: https://github.com/RahulPrabha/oldmanrahul.com/pull/11 Add .diff to the end: https://github.com/RahulPrabha/oldmanrahul.com/pull/11.diff Copy […]
Autoland saves King Air, everyone reported safe
Garmin has confirmed the first emergency use of its Autoland system occurred on Saturday in Colorado. “Garmin can confirm that an emergency Autoland activation occurred at Rocky Mountain Metropolitan Airport in Broomfield, Colorado,” the company said in a statement Sunday. “The Autoland took place on Sat., Dec. 20, resulting in a successful landing. We look […]
ELF Crimes: Program Interpreter Fun
December 21, 2025 For reasons I don’t even remember, I was reading about the details of the ELF executable format, and stumbled across the program interpreter functionality used for dynamic linking. Immediately I was struck by one of the more cursed and yet simultaneously pedestrian ideas I’ve had, but we’ll get back to that. For […]
Show HN: WalletWallet – create Apple passes from anything
WalletWallet — Create Apple Passes for Free Free and works in browser A simple utility to convert physical barcodes into digital passes for Apple Wallet®. Entirely free and runs directly from your browser. 1 Enter your membership or loyalty card barcode data. 2 Configure the appearance and titles for your pass. 3 Download and open […]
Intertapes – collection of found cassette tapes from different locations
E.W.Dijkstra Archive
(photo ©2002 Hamilton Richards) Edsger Wybe Dijkstra was one of the most influential members of computing science’s founding generation. Among the domains in which his scientific contributions are fundamental are algorithm design programming languages program design operating systems distributed processing formal specification and verification design of mathematical arguments In addition, Dijkstra was intensely interested in […]
CO2 batteries that store grid energy take off globally
This giant bubble on the island of Sardinia holds 2,000 tonnes of carbon dioxide. But the gas wasn’t captured from factory emissions, nor was it pulled from the air. It came from a gas supplier, and it lives permanently inside the dome’s system to serve an eco-friendly purpose: to store large amounts of excess renewable […]
ARIN Public Incident Report – 4.10 Misissuance Error
Posted: Friday, 12 December 2025 ARIN Executive Summary On 2 December 2025, an IPv4 block 23.150.164.0/24, correctly allocated to the Original Customer, was inadvertently removed and reissued to the Requesting Customer during a 4.10 allocation process. This error stemmed from the current manual and partially offline 4.10 inventory process. The incorrect state persisted until 9 […]