Ah I see. Well I've never done it but I believe it's quite straight forward. Buy some mealworms, let them grow into beetles and they should reproduce on their own.
I haven't read this so I don't know how good it is but maybe it will help.
mealworms are easy I use a rubber maid 43 quart container, make a 3 inch layer of quick oats add a piece of card board, poke tons of hole's on lid of container and add mealworms and when they become beetles I add baby carrot to the container and change replace it every 48 hours with a fresh one unless they have eaten it all.
I have a steralite that I dumped about 100 mealies into. I fed them for a few weeks and then life went a little crazy so I forgot about them. I went to clean out the bin over the weekend and found a ton of mealworms. All different sizes.
So being that they had about 4-6 months of no care and still produced, they are pretty easy
but when you can get 1000 meal worms for a couple bucks... Why bother breeding them?
my old leos loved blatta lateralis roaches, they breed super fast and put some nice growth on my geckos. i went from 2,000 to over 10,000 in less than 2 months.