Zipline CEO Keller Rinaudo told TechCrunch that this was more by necessity than design, noting that when the company first started developing its drone tech, it quickly realized that off-the-shelf components weren’t reliable or didn’t integrate well. The company said it is planning to deliver 2.4 million doses of the COVID-19 vaccine by the end of the year. “Over time Zipline has had to basically rip every single thing out of the system, whether it was the flight computer [. . .] or the battery pack, or the aircraft itself. One advantage Zipline may have over competitors in the FAA’s certification process is that it has many thousands of hours of safe flight data to show that it’s system is sound. In the long run, Zipline may start to focus on other industries, but for now it’s laser focused on healthcare, Rinaudo said.