So, I built this corner radius revolving template jig from plexiglass and plywood (picture included). It is used with a flush-trim bit on a router table to make identical corner curves.
Here is a 3 min instructional clip: https://www.youtube.com/watch?v=BPs93ikqanY
Please be safe and Happy Woodworking!
-- Michael Makarevich (CrazyRussianWoodShop): https://www.youtube.com/channel/UCYNOkVS7B5_6A3GgNq7TtrQ