This is Amazon's Alexa running on a Raspberry Pi Zero built into a mid-century modern intercom for your desk.
Plug your devices into your Pi, image your SD card with the latest Rasbian, set it up on WiFi, and get it's IP address, we'll need this in a bit. There are many good guides on how to do this including; https://www.raspberrypi.org/help/noobs-setup/ and https://learn.adafruit.com/adafruits-raspberry-pi-lesson-3-network-setup/finding-your-pis-ip-address.
Now that you have your IP we will connect to your PI so we can download Novaspirit's GitHub repository. There are a few options so pick one that works for you. Either through Putty and SSH to your IP https://www.raspberrypi.org/documentation/remote-access/ssh/windows.md, console cable https://learn.adafruit.com/adafruits-raspberry-pi-lesson-5-using-a-console-cable/overview, or by plugging in a mouse, keyboard, and monitor.
Once connected install Git through apt-get with;
sudo apt-get install gitFollow any prompts and you should have git installed.