How to Disable Auto-Start on Your MacBook When Opening the Lid or Plugging in Power

Apple has published a support document guiding users through the process of disabling the automatic boot-up feature on MacBooks when the lid is opened or power is connected. This feature, which requires macOS Sequoia or later, involves using Terminal commands to modify the boot preferences. Users can choose to disable startup for both scenarios, only when opening the lid, or only when connecting to power. To re-enable automatic startup when opening the lid, a specific command is provided. The article also mentions that these steps do not affect the Mac's behavior when a key or the trackpad is pressed, and suggests using CleanupBuddy for cleaning the keyboard without triggering boot-up. Additionally, users can disable the startup chime in Settings > Sound.