title: How to dual license my open source software?
body: <p>I am working on a library and would like to dual license it:</p>
  
  <ul>
  <li>One open source license for open source projects</li>
  <li>One commercial license for commercial projects</li>
  </ul>
  
  <p>However, I was approached by an organizer of a "coding fest" which wanted to use my project for an open source coding event. I am not sure if it would be smart to let other developers work on the project as I want to keep the legal right to release it under a commercial license as well as an open source one. How should I handle that ?</p>
  
  <p>PS: The open source license I have chosen is GNU Affero GPLv3 license (AGPLv3).</p>