ENVI
ENVI is a fully featured GIS software package with a focus on processing & analyzing hyperspectral imagery.
Tutorials
Tutorials on how to use Wyvern's imagery with ENVI are located at the below link:
https://www.wyvern.space/wyvern-tutorial-dragonette-data-in-envi-software
More Resources
NV5 provides excellent documentation for their ENVI software package. There is also fantastic documentation around different vegetative indices & processing algorithms.