A customer recently asked if there was a way to enable Nintex Workflow features automatically whenever a new project is created.
There is a way to do it and it involves using a feature site template association. Feature site template associations allow you to include a specific Feature as part of a site definition when you provision sites through the definition. It is explained on here on MSDN.
The Nintex Workflow Teamsite level Feature ID number is 9BF7BF98-5660-498a-9399-BC656A61ED5D