WOINFoundry brings the functionality of the WOIN role-playing system to foundryvtt. The system currently only has premade compendiums for NEW, however you should still be able to use it for other systems built on WOIN fairly smoothly. I'm not super active updating this, but please post any issues you find on the github issue tracker.
What is WOIN?
The WOIN rules and information can be found at http://www.woinrpg.com/. All content used in the system is under the open games license version 1.0a, found at http://www.woinrpg.com/open-gaming-license.