Read the Mac's current thermal state: per-sensor die temperatures (CPU/GPU/memory), fan RPM (actual/target/min/max) and mode, power draw in watts, and the fan-control state (manual targets, remaining TTL, last automatic revert). Use this before and after changing fan speeds, or to decide whether pre-cooling is worthwhile.

Put the Mac's fans into manual mode at a given speed. Provide either 'rpm' (absolute) or 'percent' (0-100, mapped onto each fan's min-max range). Values are clamped to the hardware's reported safe range. The setting expires after ttl_seconds (default 900, max 7200) and fans return to system control — call again to renew. A root-owned failsafe overrides manual control if any die sensor reaches 102°C. Typical use: raise fans BEFORE starting a heavy build/inference job so the machine stays out of thermal throttling.

Convenience wrapper: run all fans at 100% for a limited time (default 600 s). Good for pre-cooling right before a compile, video export, or LLM inference burst. Reverts automatically.

Release manual fan control immediately and hand thermal management back to macOS (thermalmonitord). Use when the heavy workload is done.