Damn, I forgot to grab a link while on pc, I will later. A guy called Arachnoclown has a good video on how he does it, the best method I've ever seen. You can probably find him on YouTube easily enough though.
I can tell you the basics. You keep them dry, oats,coco peat or some kitty litters as substrate. Place tubs of a moist substrate in there, can be a peat/sand mix or something like vermiculite. The adult crickets deposit their eggs in the tubs, you remove the tubs and put them into another enclosure to hatch and grow. You replace the tubs as you remove them, when the eggs have hatched you swap the tubs over again. You then have a constant supply of baby crickets. You can separate them as they grow, or let each batch grow up separately and have several hatching/growing enclosures being used in rotation, the enclosure with the largest crickets becomes the breeding enclosure with the preceding breeders being used as food. Their enclosure is then cleaned and set up for the next batch of eggs.
You keep the substrate dry and the tubs damp, feed them vegetables and perhaps some protein like dry cat/dog/fish food and you'll be fine. Decor is egg cartons and cardboard stacked to make as many hidey holes as possible to reduce cannibalism.
Given enough fesh vegetables they won't need water, it's more of a liability. I can't think of much else to add. That's what I've done in the past but crickets are much noisier than mealworms or roaches and require more heat so I don't bother anymore.
Arachnoclown does it differently, it's worth checking his video out, I don't know how he stands the chirping to be honest, it was annoying me just watching the video!
Edited by DaveJay, September 16 2018 - 12:04 AM.