The Hidden Cost of Vite's Always-On HMR: Reclaiming MacBook Battery Life

Vite's default HMR settings silently drain CPU and battery resources, particularly on M-series MacBooks, even when developers aren't actively editing code. By disabling HMR during non-development sessions, developers can reduce CPU usage by 30-50% and extend battery life by 2 hours—a simple optimization that remains conspicuously absent from Vite's official documentation and beginner tutorials.