2.Those kids aren't making 32K USD per month.Their father is making 32K USD per month.He bought all the mining equipment.He owns that mining equipment.I don't believe that the kids "have built" anything and I don't believe that the kids are maintaining that mining equipment.
That's the obvious thing poeple are ignoring.
It's their father who took a 100k loan and give them these to play as owning a business, he's the one running the company, he's the one hiring poeple, they are just doing what they can, it's not like they could have been able to make even a cent without a parent buying them the means to do it.
And yeah, of course, they are to maintain it since they pay 4000$ for that, if they would be able to do it they wouldn't spend it on technician.
It's like Rockefeller's first million, he first opened a lemon stand, he was selling 10$ of juice at first, and then ...he inherited 100 million

Wondering what apps or technology has this?
Nothing special, there are tens of this kind of software, awesomeminer for example.