In the past, most apps were first launched on Windows, Mac, or sometimes not even adapted at all. Now, it’s the other way around. From Claude to Lobster to Gemini, almost all AI apps are now first launched on Mac instead of Windows. The main reason is ecosystem homogeneity: macOS’s Unix kernel is a 'close relative' to Linux, the main battlefield for AI development. Developers can seamlessly migrate tools and code without needing extra adaptation or compatibility considerations.