I will keep it to the point.
2'x2' cube is great but a 15 gallon will do. Branches, foam walls, live (or plastic) plants, medium hide spot round or tunnel will work...keep 2 or more. 73-78F (room temp for most homes), keep slightly humid not wet and can dry out slightly to keep mold and bacteria down. Natural light on timer, though not used directly helps as natural sanitizer and keeps day night cycle. Small water dish changed often. Lots of crickets(gut loaded)...remove dead or uneaten crickets.