tl;dr: Mitchell Hashimoto (of HashiCorp fame) discusses building Ghostty to sharpen his skills in GPU programming, systems programming, and Zig, arguing terminals need better foundational protocols (like an n-screen API and button protocol) rather than becoming full app platforms. He defends a "feature-rich but not bloated" philosophy, pushes back on user entitlement in open source (telling people to fork), and praises Zig's willingness to make breaking changes—noting AI tooling makes such migrations far less painful. He also argues learning C matters less than understanding how computers actually work at the syscall level.