All of our material is open source and reuse is encouraged. In general, we only recommend similarly open-source, reusable lessons. Check the license from each repository in case of questions (most CodeRefinery-developed lessons use CC BY 4.0).
Teaching these lessons independently is encouraged, just make sure the distinction between the "CodeRefinery" project and your workshop is clear. For example, give your own name to the workshop but say "(CodeRefinery lessons)".
Our lessons are designed to be generic, (mostly) stand-alone, and re-used in place without forking so that anyone can use them and they can fit into different types of programs. We welcome contributions which make the lessons more reusable - send changes using standard open-source practices (you know, what we teach in CodeRefinery and all).
Please let us know if the material is helpful - it is important for us to know whether this material has impact outside of our workshops. Some courses/workshops we know of are listed below but we would like to list more.