This is a recap of the top 10 posts on Hacker News on Jan 11, 2026.

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

• (00:00) - Intro

Finding and fixing Ghostty's largest memory leak
https://mitchellh.com/writing/ghostty-memory-leak-fix
https://news.ycombinator.com/item?id=46568794

Open Chaos: A self-evolving open-source project
https://www.openchaos.dev/
https://news.ycombinator.com/item?id=46566812

Show HN: I used Claude Code to discover connections between 100 books
https://trails.pieterma.es/
https://news.ycombinator.com/item?id=46567400

Code and Let Live
https://fly.io/blog/code-and-let-live/
https://news.ycombinator.com/item?id=46557825

AI is a business model stress test
https://dri.es/ai-is-a-business-model-stress-test
https://news.ycombinator.com/item?id=46567392

Show HN: Ferrite – Markdown editor in Rust with native Mermaid diagram rendering
https://github.com/OlaProeis/Ferrite
https://news.ycombinator.com/item?id=46571980

My Home Fibre Network Disintegrated
https://alienchow.dev/post/fibre_disintegration/
https://news.ycombinator.com/item?id=46572679

A battle over Canada’s mystery brain disease
https://www.bbc.com/news/articles/c623r47d67lo
https://news.ycombinator.com/item?id=46572769

Overdose deaths are falling in America because of a 'supply shock': study
https://www.economist.com/united-states/2026/01/08/why-overdose-deaths-are-falling-in-america
https://news.ycombinator.com/item?id=46569312

ASCII-Driven Development
https://medium.com/@calufa/ascii-driven-development-850f66661351
https://news.ycombinator.com/item?id=46538628