This is a recap of the top 10 posts on Hacker News on Apr 12, 2026.

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

• (00:00) - Intro

Small models also found the vulnerabilities that Mythos found
https://aisle.com/blog/ai-cybersecurity-after-mythos-the-jagged-frontier
https://news.ycombinator.com/item?id=47732020

Show HN: Pardonned.com – A searchable database of US Pardons
https://news.ycombinator.com/item?id=47727960

How We Broke Top AI Agent Benchmarks: And What Comes Next
https://rdi.berkeley.edu/blog/trustworthy-benchmarks-cont/
https://news.ycombinator.com/item?id=47733217

Every plane you see in the sky – you can now follow it from the cockpit in 3D
https://flight-viz.com/cockpit.html?lat=40.64&lon=-73.78&alt=3000&hdg=220&spd=130&cs=DAL123
https://news.ycombinator.com/item?id=47694064

Optimal Strategy for Connect 4
https://2swap.github.io/WeakC4/explanation/
https://news.ycombinator.com/item?id=47695213

Cirrus Labs to join OpenAI
https://cirruslabs.org/
https://news.ycombinator.com/item?id=47730194

Advanced Mac Substitute is an API-level reimplementation of 1980s-era Mac OS
https://www.v68k.org/advanced-mac-substitute/
https://news.ycombinator.com/item?id=47731506

I run multiple $10K MRR companies on a $20/month tech stack
https://stevehanov.ca/blog/how-i-run-multiple-10k-mrr-companies-on-a-20month-tech-stack
https://news.ycombinator.com/item?id=47736555

447 TB/cm² at zero retention energy – atomic-scale memory on fluorographane
https://zenodo.org/records/19513269
https://news.ycombinator.com/item?id=47733561

Surelock: Deadlock-Free Mutexes for Rust
https://notes.brooklynzelenka.com/Blog/Surelock
https://news.ycombinator.com/item?id=47693559