This is an example of making a Common Lisp project using cl-project.
Postal code is called "Yubin Bangou" in Japanese. The app "Yubin" searches the name of a place by yubin command.
You can install yubin using Roswell.
$ ros install clfreaks/yubin
yubin <postalcode> will return the place name of the postal code.
$ yubin 6380321
奈良県吉野郡天川村坪内
t-cool
MIT