Developer Certificate of Origin
Inspired by and borrowed from Librem5.
The Developer Certificate of Origin (DCO) ensures that persons contributing code are allowed to do so and that the project stays under a free license. This is indicated by a sign-off.
The sign-off is a simple line at the end of the explanation for the patch, which certifies that you wrote it or otherwise have the right to pass it on as an open-source patch. The rules are pretty simple: if you can certify the below:
then you just add a line saying:
using your real name (sorry, no pseudonyms or anonymous contributions.)