The pendulum of computing is swinging back. After fifteen years of deference to centralized cloud hyperscalers, enterprises are realizing that sending proprietary data across external APIs is a forfeiture of sovereignty. Quantized local models, Apple Silicon neural engines and dedicated edge silicon are bringing intelligence home. Local-first AI is no longer a hobbyist ethos; it is a corporate defense against vendor lock-in, API throttling and regulatory exposure. Cloudfall explores the engineering, economics and judgment involved in reclaiming the machine from the cloud.