# Contribution guidelines for pwm pwm is intended to be small, simple, fast, and easy to understand. All contributions must maintain these four qualities. If your pull request is large, complicated, makes pwm slow, or is impossible to understand, I will reject it. pwm is in the public domain. All contributions must therefore also be in the public domain. Pull requests containing copyright or license notices will be rejected. Because pwm is in the public domain, you can fork it and put whatever license you like on it; however, the canonical pwm code base is in the public domain and will remain so.