We are currently accepting bug fix contributions but we are always open to your suggestions.
We are in the process of experimenting with the new G-code debugger functionality. If this proves useful, then some re-architecturing will be required before we can open this up further. Please contact us if you would like to contribute to this.
Before contributing code to this project, we ask that you sign a Contributor License Agreement (CLA). The documents include instructions on where to send the completed forms to. Once a signed form has been received you will be able to submit pull requests.
We will review your contributions within a month of submission - hopefully sooner.