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

Hacker News Highlights · Dec 15, 2025 · 11m

This is a recap of the top 10 posts on Hacker News on Dec 15, 2025.

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

(00:00) - Intro

(00:18) - Hashcards: A plain-text spaced repetition system

(01:24) - Elevated errors across many models

(02:20) - Ask HN: What Are You Working On? (December 2025)

(03:15) - Shai-Hulud compromised a dev machine and raided GitHub org access: a post-mortem

(04:30) - Adafruit: Arduino’s Rules Are ‘Incompatible With Open Source’

(05:35) - Microsoft Copilot AI Comes to LG TVs, and Can't Be Deleted

(06:38) - Roomba maker goes…