Starting with nightly build 2024.09.28, the Manifold geometry backend is no longer experimental: It’s now possible to choose between the two geometry backends in Preferences->Advanced->3D Rendering->Backend. For cmd-line usage: openscad --backend=manifold CGAL is (for the time being) still the default backend. Thanks to [@ochafik]( ) for spearheading this, and to the Manifold team for being very supportive and engaging actively with the OpenSCAD community! image