Milestone for tasks that require work from multiple disciplines (pneumatics/electrical/mechanical/software/etc). The end goal of this milestone is to build a prototype ventilator with all the parts connected and reasonably functional, i.e. software can talk to electronics, which can control pneumatics, which can produce feedback on the sensors, and it all fits into the mechanical enclosure. Note, this is not the milestone for the fully-functional, fully-documented Ventilator V0.4. Refinement past integration should be in another milestone.