I built the drawer shape perfectly - exactly as I planned it on CadRail. Amazing for a non-carpenter. Unfortunately, the CadRail plans had some errors. The benchwork section angling away from the wall in this photo was drawn as a 15 degree angle relative to the wall; in reality, it's just a bit over 12 degrees.

I don't know what the source of the error was, but the drawing was updated for posterity and the drawer that was built to the spec laid out in the drawing was "trimmed" to the on-site spec...

This photo shows the temporary fixture to ensure my freehand cutting skills aren't tested.