Pinguin has the following prerequisites:

• Autodesk EAGLE PCB design software. If reading this guide, you’re likely already a user… but if not, a limited free version is available for Windows, Mac and Linux.
• A recent (3.X) version of Python…a standard feature on many systems now (e.g. macOS includes Python 3.7). Type python -V from a command prompt and see what you get. If not present, visit Python.org for installation help.
• The Pillow graphics library. This might already be installed with Python, or you can type:

(may require “pip3” or capitalized “Pillow”, but that’s the basic idea.)

The Pinguin software can be retrieved either via git if you have that installed:

…or by downloading and uncompressing the ZIP archive from GitHub:

You’ll have a folder, Adafruit_Pinguin, containing the pinguin.py Python script and a fonts subdirectory.