The reason you can control drones is that it’s basically a full-on OS that can send to arbitrary system commands. If Russia wants it 100% home grown they’re going to have to develop their own architecture. What I suspect is it won’t actually be that home grown and will mostly be Linux based, but Putin doesn’t know the first thing about computer systems so it’ll be fun to watch someone have to tell him that.
It’s the same with North Korea, they claim to have their own PC OS but it’s just Windows XP with a custom skin.