This is a recap of the top 10 posts on Hacker News on Oct 13, 2025.

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

• (00:00) - Intro

Wireguard FPGA
https://github.com/chili-chips-ba/wireguard-fpga
https://news.ycombinator.com/item?id=45559857

Free software hasn't won
https://dorotac.eu/posts/fosswon/
https://news.ycombinator.com/item?id=45562286

Ask HN: What are you working on? (October 2025)
https://news.ycombinator.com/item?id=45561428

Show HN: I built a simple ambient sound app with no ads or subscriptions
https://ambisounds.app/
https://news.ycombinator.com/item?id=45558611

Emacs agent-shell (powered by ACP)
https://xenodium.com/introducing-agent-shell
https://news.ycombinator.com/item?id=45561672

Show HN: Baby's first international landline
https://wip.tf/posts/telefonefix-building-babys-first-international-landline/
https://news.ycombinator.com/item?id=45515978

Three ways formally verified code can go wrong in practice
https://buttondown.com/hillelwayne/archive/three-ways-formally-verified-code-can-go-wrong-in/
https://news.ycombinator.com/item?id=45555727

Bird photographer of the year gives a lesson in planning and patience
https://www.thisiscolossal.com/2025/09/2025-bird-photographer-of-the-year-contest/
https://news.ycombinator.com/item?id=45487232

A years-long Turkish alphabet bug in the Kotlin compiler
https://sam-cooper.medium.com/the-country-that-broke-kotlin-84bdd0afb237
https://news.ycombinator.com/item?id=45559767

John Searle has died
https://www.nytimes.com/2025/10/12/books/john-searle-dead.html
https://news.ycombinator.com/item?id=45563627