- In Project Elara, you may use any CAD software of your choice - We strongly encourage you to share your model files in our open-source Git repositories, and in particular, in `elara-labs/models` - However, we ask that you share your models both in your CAD software's native file format and in the `.step` open interchange format - First, this ensures maximum compatibility between different CAD software - Second, `.step` is also supported by open-source CAD softwares (like FreeCAD) which avoids vendor lock-in