welcome to the forum!
solution to living in a middle of nowhere to start dubia colony going after initial investment you will have a indefinite food supply for the cost of their food
crickets are smelly, they're fragile, you'll have escapees no matter how careful you are.
but if you wanna get them as a food, you have to get about 1/3 more then you need and from a reliable source. you need to keep them warm, dark, very clean with plenty of space and a lot of water (lettice, water cubes, etc.) above is an excellent example of how it is done.