Seraph Industries is one of the leaders in mechanical biotech research and one of the founders of cybernetic augmentations. They started as a company creating replacement limbs for those who had lost their limbs for various reasons. Most often this was for soldiers who were injured in combat under contract with the US military. Eventually they hit on a way to tie into the bodies nervous system allowing two way communication. Though there is a period of adjustment and attunement to make the system work. Also there are worries about ‘rejection’ as the human body was not intended to blend with mechanical systems and so the body can react to them as foreign material and attack the augmentations. For this reason very specific rejection drugs have been created and are used in all likely rejection candidates.