An important step towards an MVP for Fornjot: This milestone focuses on a basic but solid set of modeling features.

A user can create sketches out of straight line segments (polygons), extrude those sketches into shapes, and use constructive solid geometry to combine those shapes. This basic feature set is really solid, not leading to any crashes or weird errors, regardless of how those features are used in the model code.

More experimental features that are not as solid are clearly marked, possibly requiring some kind of opt-in from the user.