May 2026
Twitter Facebook

May 09, 2026
Ask HN: We just had an actual UUID v4 collision...
421 by mittermayr | 319 comments on Hacker News.
I know what you're thinking... and I still can't believe it, but... This morning, our database flagged a duplicate UUID (v4). I checked, thinking it may have been a double-insert bug or something, but no. The original UUID was from a record added in 2025 (about a year ago), and today the system inserted a new document with a fresh UUIDv4 and it came up with the exact same one: b6133fd6-70fe-4fe3-bed6-8ca8fc9386cd We're using this: https://ift.tt/RzAiSZ7 I thought this is technically impossible, and it will never happen, and since we're not modifying the UUIDs in any way, I really wonder how that.... is possible!? We're literally only calling: import { v4 as uuidv4 } from "uuid"; const document_id = uuidv4(); ... and then insert into the database, that's it. Additionally, the database only has about 15.000 records, and now one collision. Statistically... impossible. Has that ever happened to anyone?! What in the...

Twitter Facebook

May 01, 2026
Show HN: WhatCable, a tiny menu bar app for inspecting USB-C cables
464 by sleepingNomad | 133 comments on Hacker News.
USB-C cables can be a mess. One cable charges at 5W, another does 100W and Thunderbolt 4, and they look identical in the drawer. WhatCable sits in your menu bar and reads the cable data your Mac already has access to. Plug in a cable and it tells you in plain English what it can actually do: charging wattage, data speed, display support, Thunderbolt, etc. Built in Swift/SwiftUI. Open source, free, no tracking. GitHub: https://ift.tt/L4kXD13

MKRdezign

Contact Form

Name

Email *

Message *

Powered by Blogger.
Javascript DisablePlease Enable Javascript To See All Widget