What's with the name?
Wyam is a Native American name for the Celilo Falls area and is also roughly translated as "echo of falling water" or "sound of water upon the rocks". Which sounds kind of like static. For a static site generator. Get it? I also liked the image of water going over the falls as one thing then going through a transition as it emerged at the bottom as something else. Plus the name just sounds cool, and the domain was available. It's also very searchable (looking at you Visual Studio Code).
Not another static site generator; what were you thinking!?
TL; DR: I wanted to build one, so I did.