\title{Servos}

The servo is a mobile \link{socket}{socket}.
Any tool that can be equipped on a socket
can be equipped on a servo.

Servos ride on \link{servorail}{servo rail}.
A servo that is moving in a direction is facing that direction,
and its top can point at any of the 4 directions that aren't
parallel to its facing direction.

Servos require \link{charge}{charge} to operate.

They are controlled by \link{servorail}{instructions}.
