Show HN: LuaCAD – Parametric CAD Scripted in Lua

LuaCAD is a parametric CAD tool that allows users to script 2D and 3D models in Lua and export them to various formats including 3MF, STL, OBJ, and others. Built with a Rust engine that uses Manifold for CSG operations, it offers advantages over OpenSCAD such as operator overloading for natural syntax (a + b, a - b), faster execution, and a desktop GUI with live 3D preview. The project includes full support for the Belfry OpenSCAD Library v2 and can be installed via Cargo or compiled from source.