Ouroboros HTML is a humorous project that compiles HTML through 20 incompatible programming languages and runtimes (Python, PHP, Go, C, WebAssembly, Brainfuck, JavaScript, Svelte, PostgreSQL, Pandoc, and others) to produce functionally identical HTML5 output, demonstrating the software engineering principle of solving problems through layers of indirection while ironically proving the inverse theorem about too many abstraction layers.
Researchers tasked AI coding agents with building chess engines from scratch across 12 programming languages, from mainstream (Rust, C++) to esoteric (LaTeX, Brainfuck). The agents produced functional, UCI-compliant engines reaching over 2000 Elo, with some languages like Brainfuck and LaTeX seeing their first playable chess engines ever created by AI.