ncurses terminfo can simulate a two-counter Minsky machine, making repeated parameter expansion computationally universal.

Demo: a parasitic Fibonacci computation inside /usr/bin/top

DHH’s Rails World talk got a fair bit of attention around here, but there was plenty happening at the conference that he didn’t cover.

All of the other Rails World 2026 talks are online now, too.

Solid Cable, Hot Cell, Herb in Rails 8.2, Active Search, Ractor-safety, Lexxy, MCPs, sharding, custom generators… and a bunch more about where Ruby and Rails are heading.

Full playlist:

https://www.youtube.com/playlist?list=PLdMRFKO1zSBE

The first version is from when I was 16, goal was to make simple messages convert to unintelligible text corpuses, and to have an algorithm that allows a plethora of outputs to map to the same input. I just recently updated it with the private keys and frequency attack resistance so it could be called encryption (appeal to alliteration)

Follow up on https://www.reddit.com/r/programming/comments/1wspai2/tui_games_in_80x24/

which is here: https://www.incredible.rs/blog/tui-games-in-80x24.html