These are the rule groups I've build for my LittleSnitch configuration.

1. In LittleSnitch, click "New Rule Group Subscription" in the File menu.
2. Add a URL from https://littlesnitch.scrtybybscrty.org
3. LittleSnitch defaults to leaving imported rules "disabled". Enable the ones you want by checking the box next to them

This repo is released under the MIT License. See the bundled LICENSE file for details.