I suppose with chickens I am never short of material, but having sen all the trouble some people seem to get/make for themselves, I find a good old fashion ‘3 bay’ system which seems to attract plenty of worms does the job even if it can take about a year start to finish & do little in winter
Chuck in whatever you have got chuck it into the 2nd bin when the first is full – job done
My 3rd bin though is about twice the size of the other two so it gets plenty of time to mature