Please may the repository be released under a libre license?

[throwaway1037]

Please may the repository be released under a libre license?
At the moment it is proprietary.

[Whoeza]

Please may the repository be released under a libre license? At the moment it is proprietary.

Just fork this repo, add your desired LICENSE, send Pull Request to them and ask them in there. There are plenty licenses that you could be referring to.
With those steps, your question is a bit more complete.