Now to download and wait out the hours-long build.
Now building module 524 of 3998...
Inevitably, the Windows build is a download via a provided launcher, and the Linux build is getting the sources from Github, searching forums for the directions, and compiling for hours. Supposedly Nanite will work in Linux in the release version; it didn't in the pre-release.
The city from the Matrix demo is available for download. I want to try that.