Hardware

The whole build starts with one stubborn constraint: the truck sits for days at a time, and when it sits, nothing is supposed to be awake. This is a computer for a 1969 Chevy Blazer (and a second truck, a Dodge). It sleeps until my phone comes near, wakes, boots, and talks. Offline-first, low power, always-on sentry that draws almost nothing and a real computer that stays dark until it is needed.

Setup - Dymo LabelWriter 450 on Mac OSX

The clinic software requires the ability to print labels adhoc and by event. This requires that the client be able to initiate the labels. There are no requirements that the backend server be able to print labels. Thank goodness. That requires something akin to a fulfillment center and probably integration with a 3rd app. Welcome: disparate stand-alone boxes.

Install App and Drivers

Good job guys. You get a big thumbs up for having a brew recipe.