Reading this and Bun's Rust transition blog side by side just gives me a lot fun. I'm a big fan of Rust, and as well as Ghostty. Picking proper programming language is mostly about the product you are making and the problem you are solving. My choice for my robot control system is Rust because I want zero-cost abstraction, no GC jitter, memory safety and avoid race conditions. Then I moved my focus to AI agents and web applications, I pick TypeScript to take advantage of the whole ecosystem and no need to sync between backend and frontend codes. I do not think products like Ghostty could benefit from Rust's memory safety feature a lot, but it do requires more attention to fight against the lifetime checker