I'm thinking most of that's possible, but not quite sure about how to detect wanting a beer
Could rig something with a fridge, maybe Arduino, and motors (some way to keep containers cold and retrieve on-demand), connect that system to a Roomba (it'd pull-up at the fridge and pick-up a cold beer), and a trigger on a health sensor on Apple Watch/etc (if >6PM on weekend, if sugar and BPM enter a range, initiate beer delivery, restart check every 20mins)