thank you for an interesting/educational article! in the section named "Where we’re going, we don’t need IDEs" the sequence of commands creates a file named ap

thank you for an interesting/educational article! in the section named "Where we’re going, we don’t need IDEs" the sequence of commands creates a file named app.zip at one point: zip -r app app.zip but app.zip doesn't seem to be used later. am i missing something or should that be: zip -r app app-release-unsigned.apk