This program is a rudimentary teledildonics application built around the finger daemon - hence bringing generations of CS undergrad innuendo full circle.

It has two modes in addition to what you're seeing now - if you finger [any string]@[this host], a series of random pulses will be generated, proportional to the length of the string.

Alternatively, fingering 0x[hex digits]@[this host] will instead send a direct stream of motor speeds to the vibrator, one per second.