Aw man nothing to it, there are probably way more complicated ones online but I got a 40 gallon garbage can on the patio going all summer. I use an old shirt or pillow case for the t bag hanging on a piece of PVC across the top. I have notches in the lid so it will sit on top. An aquarium pump running with two stones in it. I use molasses or karo syrup. Cola will work too. You just need some sugar to make the bacteria take off. For a bucket sized batch you can use a couple tablespoons. For my big garbage can I put about a 1/2 cup or so. Like I said it stays going I refresh the water as I use it and change the compost when I think it needs it.
Ill get a couple pics up if you want, I started it up sunday.