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+# MVP 0.1
+
+MVP 0.1 focuses on the editor core:
+
+- Start the Avalonia desktop app.
+- Pan and zoom a millimetre canvas.
+- Draw lines from two points.
+- Draw circles from three circumference points.
+- Draw arcs from start, through, and end points.
+- Select and delete entities.
+- Undo and redo document mutations.
+- Save and load the native JSON project format.
+- Export LINE, CIRCLE, and ARC entities to DXF.
+
+MVP 0.2 adds the manual reference-image layer:
+
+- Import a raster image as a locked background reference.
+- Display the reference below CAD entities.
+- Adjust opacity independently of geometry.
+- Lock and unlock the reference.
+- Edit reference X/Y origin, scale, and rotation manually.
+- Save and reload reference metadata in the native JSON project file.
+
+Deferred work:
+
+- Calibration sheet generation.
+- OpenCV marker detection.
+- Assisted fitting tools.
+- Constraint and dimension systems.