I found out about this on Youtube. It's a concept album that sounds like a mix of 80s self-help tapes and vaporwave. I find the presentation interesting, in this early PC era lookalike. If you click on "Listen" you'll hear the music, with some backstory on [1].
I'm not a developer for Windows apps but had to use WiX to generate an installer for a Python open source project I am collaborating with. Installing one binary in a specific location? Easy. Couple hundred files distributed among multiple nested directories? That was a miserable experience and but I could manage to pull it off. I didn't use heat. The XML was hand-coded and the file listing was generated with a Python script that walked the directory tree and generated the Directory, Component and ComponentGroup entries.
Apparently with Wix4, heat is deprecated, unneeded in Wix5. I couldn't even get it to install and have the executable. So confusing!
[1] https://www.youtube.com/watch?v=gfRSBEqueL8