Need to install Wix and the WixToolset.UI.wixext extension
Wix:
dotnet tool install --global wix
WixToolset.UI.wixext Extension:
wix extension add -g WixToolset.UI.wixext
With Wix installed, you need to generate the Wix XML.
python generate_wix.py --folder <deploy output> --version <version of JG>
This will generate the WXS file and a "wix_data.p" file which are used to build the installer.
From there, run wix:
wix build -src joystick_gremlin.wxs -ext WixToolset.UI.wixext