According to CoinMeta, OneMillion.AI reported that the macOS open-sourced by Browser Use allows AI to directly operate the entire Mac, including viewing and manipulating desktop applications, controlling the real browser, reading and writing files, and running shell, without interfering with the user's actual mouse. This tool combines the underlying capabilities of Mac with a continuously running Python environment, enabling AI to replenish missing operational logic in real-time during tasks. Compared to traditional computer and use drivers, macOS and harness are more like providing AI with a "programmable Mac" that can not only operate the computer but also enhance its own capabilities while working.