Hobo stoves are great for camping, but can be used anytime you need to cook real food and don't have a real kitchen.
After drilling holes in the main pot, you can easily put a kit together using the components shown in this video.
The first part is the only hard part!
The narrator made the round holes with a drill and the square hole by drilling the 4 corners with a drill and then cutting from corner to corner with a dremel tool and a cuttoff disk. Then he deburred the holes with a file and a deburing knife.