<p>Perhaps influenced by industrial mandatory practices, I wanted to add an emergency button to my home server in order to shut it down fast. For example in case of power shortage, I’d like to trigger a clean shutdown before the UPS runs out of power and without requiring a screen or keyboard attached. Therefore I bought an USB “emergency” button. <figure><img src="/img/emergency_button.jpg"><figcaption> <h4>Example of USB emergency button</h4> </figcaption> </figure>…