It's not that hard, but that's not what DJI offers. Their business (and, who knows, maybe political) incentives are different, so they chose a closed, guarded s

It's not that hard, but that's not what DJI offers. Their business (and, who knows, maybe political) incentives are different, so they chose a closed, guarded system. By the way, it's what everyone did in the 80's/90's, so why would some contingent of companies not be that way now.