A forum category to discuss and exchange information, ideas, and knowledge related to the context of FEA and FSI. The goal of this category is to serve as a community of users, developers, and experts who interact and collaborate on various aspects of the software, such as usage, development, bug fixing, and feature requests. Joining this discussion group is a great way to learn from others and stay updated on the latest developments in open-source FEA and FSI. Specifically using Calculix but not exclusively.