Here’s a quick blow by blow.
In order to get the hinges in, I super glued the hinge in place using a card scraper for spacing from the side of the case. Once I had the hinge outlined and marked using my marking knife, I knocked the hinge off the wood. Then I used my router, chisels and finally the router plane to remove the wastes. I used this same process to install the knife hinges in the wall cabinet with good result.