Hacker News Digest · January 21, 2026

Disaster planning for regular folks (2015) lcamtuf.coredump.cx / 25 comments

Anthropic’s original take home assignment open sourced github.com / 4 comments

A 26,000-year astronomical monument hidden in plain sight (2019) longnow.org / 86 comments

Are arrays functions? futhark-lang.org / 47 comments

California is free of drought for the first time in 25 years latimes.com / 162 comments

Instabridge has acquired Nova Launcher novalauncher.com / 109 comments

Show HN: Mastra 1.0, open-source JavaScript agent framework from the Gatsby devs github.com / 42 comments

The Unix Pipe Card Game punkx.org / 64 comments

Provably unmasking malicious behavior through execution traces arxiv.org / 4 comments

Which AI Lies Best? A game theory classic designed by John Nash so-long-sucker.vercel.app / 40 comments

Last updated: 2026-01-21 05:07:26 UTC