Greyhound OS runs on more than one state.

From full-speed sprint overrides to low-power shutdowns, the System Series documents the core operating modes every greyhound owner recognizes instantly. Vol.1: Zoomies captures propulsion spikes, launch events, and control loss. Vol.2: System Modes expands the system into sleep, reboot, and treat-detection states.

Built inside the Greyforge OS world, these collections turn familiar greyhound behavior into wearable interface graphics and physical aluminum system modules. The shirts carry the signal. The System Cards convert selected diagnostics and unit data into business-card-sized engraved hardware from the Greyhound OS archive.