Setup your Raspberry Pi, installing the N00Bs operating system and connecting to your local network
Solder together the Adafruit I2C backpack and the 7-segment LED display
Using various colors of jumper wire, connect the 7-segment backpack to the Raspberry Pi's as described in http://hackclock.deckerego.net/lessons/01_display.html
Assemble the pins and terminal block on the I2S breakout board
Connect the I2S module to the Raspberry Pi as outlined in https://learn.adafruit.com/adafruit-max98357-i2s-class-d-mono-amp/raspberry-pi-wiring
Optionally wire buttons or switches to the Raspberry Pi's GPIO pins
Install the hack-clock software as described in https://github.com/deckerego/hack-clock/blob/master/README.md
Restart the Raspberry Pi and run the hack-clock software - you should be able to visit the Hack Clock IDE at http://raspberrypi:9003/ - where "raspberrypi" is the hostname or IP address of your Raspberry Pi.
Click on "Edit the clock's code," then click on the IDE's "restore" button (it is the second floppy disk icon from the left). From here, restore Lesson One and start hacking!