I uploaded the code for my starter Roku project that also supports ANGLE for project testing and debugging.
https://github.com/cdoty/SuperPlayExtended
The project is set up to use Visual Studio for ANGLE on Windows, and WSL 2 and Visual Studio Code for Roku.
Parts of the code are based on my Super Play Engine:
https://github.com/cdoty/SuperPlay
I will be extending the example, and adding SteamLink and Raspberry Pi targets shortly.