Currently, a simple script to print a random meme from a subreddit of choice is provided. This can be run with a crontab or something to print a meme at regular intervals.
To set up, you need to create a Reddit application. Go to https://www.reddit.com/prefs/apps, and create a "script". Set redirect URL to http://localhost:8080. You need the client ID and the secret. Modify the config object on the top of redditpostprinter.py with your values.
The connected thermal printer needs to be set as default, and needs to be set up to support CUPS. Use this guide: Networked Thermal Printer using Raspberry Pi and CUPS
Note that the code has not been tested, and may explode.