Got a response from Jetbrains today,
We have checked your Open Source project to see if it meets all the requirements of JetBrains’ Open Source License Program.
As you correctly wrote in your application, we cannot support OS projects that provide commercial services. We believe that once the rules are set they should be applied for everyone, therefore unfortunately I cannot approve your request even though the project looks very inspiring.
Thank you for your time and consideration. Should you have any further questions - we are happy to help.
Not really surprised. If there’s other reasons to change the relationship between monome and the open source projects, then this would be a side benefit. It’s not worth changing just for this software, I’m not sure there’s any benefits to changing it otherwise, so - keep on keeping on?
Also - I started playing around with Xcode, seems like a very reasonable C dev environment. Though given my level of non-expertise, I’ll probably just stick with Atom or Emacs until I know enough to take advantage of a full blown IDE.