If you are interested in contributing to this project, please contact us. Alternatively, fork the repository, create a custom branch, add your contribution, then finally create a pull request. If we accept the pull request, we will merge your custom branch with the latest main/development branch. The latter will eventually be merged into a future release version. To contribute, it is preferable to have a solid knowledge of modern C++ (preferably C++17 or later), including templates and the standard library, a basic knowledge of quantum computing and linear algebra, and working experience with Eigen 3.