To end this section, let us repeat something already stated in the introduction:
Let us assume you found something in ASPECT to improve, something you did not understand, or something that is simply wrong. Do something about it! No matter whether you are a C++ expert or first-time user, there are no such things as too-unimportant contributions, and if you struggled with something, it is most likely somebody else will as well. The process of contributing to a new project can be daunting, but we appreciate every contribution and are happy to work with you on improving ASPECT. To get you started we have collected a set of guidelines and advice on how to get involved in the community. To avoid duplication we store these guidelines in a separate file CONTRIBUTING.md in the main folder of the repository, and you can also access them online at https://github.com/geodynamics/aspect/blob/master/CONTRIBUTING.md. Even if something in that file is not clear, this is an opportunity for you to ask your question on the mailing list (see Section 8, and let us know that file needs improvement.