Hackerloop posted a video of an amputee hacking a Nerf Speedswarm dart blaster and combining it with an Elctromyogram (EMG) reader.
EMG prosthetics read signals from the muscles in the working amputated limb to activate a simple action in a motorized prosthetic. Here the amputee hooked up such a device so that he can fire the Nerf Speedswarm blaster.
The Nerf Speedswarm is a simple revolver based design with an electric motor to cycle the air piston which mechanically rotates and indexes the dart cylinder.
He should have used the Swarmfire which has double the amount of darts for a total of 20 darts. More capacity is always better.
Or he should step it up to a .22lr pistol.