only-fans is a small command-line tool for unlocking the real maximum fan speed on Apple Silicon Macs.
only-fans deliberately bypasses normal macOS fan policy, which is designed to balance cooling and noise. If you set the fans to run at maximum speed all the time, they will be louder and may wear out faster.
Depending on your Mac, the default maximum fan speed is significantly lower than the hardware is capable of; (e.g. 10000 RPM on M1 Pro instead of 6000 RPM).
