We're building a new open-source CAD program. We've gotten pretty far, but we need your help. If you'd like to join the effort, join the Discord! What Does It Take?To build a 3D parametric CAD program, you need a: 2D Constraint SolverB-rep KernelHistory Tracker3D User InterfaceFile FormatLet's talk about each one! 2D Constraint SolverThis is the 2D engine that can ensure lines stay parallel or per