Step one is to cut the hole in the lid if you haven't done so already. Seat the net pot in the hole. it should be snug and not move or jiggle around. If you can push a bit on it and have it not pop through your likely in good shape. If it does pop through then you’re an idiot and need to get another lid and try again.
Next we will drill 2 holes near the edge of the lid for the hoses to pass through. Add 2 here in case you want to put in more lines than one in the future.
Here we can see our air lines added with the air stones at the end. These systems are designed to be super simple... Definitely noob friendly.
Here is the system fully assembled. Note that we have placed some check valves inline to make sure the water never travels up line if something bad happened.