Nobody really needed another desktop operating system, especially one devoted to carrying forward an OS whose commercial story ended more than two decades ago. Windows, macOS, and Linux already have the software libraries, hardware support, and development communities that make them the obvious choices for almost everyone. Haiku is at a huge disadvantage before it even reaches the desktop, and I went into it expecting more of a curiosity than something I’d want to keep using. Instead, I kept finding small reasons to boot it again, mostly because it feels unusually fast, focused, and opinionated about what a desktop computer should be.