There are 2 repositories under wacom-tablet topic.
Simple Qt application to inspect graphic tablet stylus input.
A Software for both Handwriting Acquisition using a Wacom Tablet and Gesture Recording using a Leap Motion
Most applications won't need any features beyond properly processing the tablet data already included in NSEvents. This API gives access to advanced features of the Wacom Tablet Driver applications can take advantage of such as disconnecting the tablet events from the mouse and automatic scaling.
A service to make a wacom tablet's draw area follow the mouse.
A simple Python script to disable touch control for Wacom tablets
Map Wacom tablet to primary screen. Adjust tablet active area to screen aspect ratio.