This site represents a work-in-progress on improvement in soaring in X-Plane, starting in 2019.
Here is a list of things required for a good sim soaring experience, and info on where we're at:
Library of useful manuals on X-Plane usage and developemnt
The official X-Plane developers website includes manuals and tutorials.
X-Plane Plugin SDK reference data, for when you reach the scary edges of your Lua development.
X-Plane.org Dev Forum
Programming X-Plane with Lua
The glider polar
Variometers overview This explains the range of variometers from the minimal rate-of-climb indicator through to the simple-to-view but complex-to-program variometers that compute the apparent 'net' movement of the airmass (by using the airspeed and expected sink rate to subtract the movement of the aircraft) and also variometers that advise you to 'speed up' or 'slow down'.
Technical guide to implementing ridge lift in any flight simulator
.. more coming soon