I tried for an hour to set this up once. The docs were all over the place, you needed prerequisites that were hard to find and linked to 404s. Mysterious errors. Eventually my curiosity was overcome and I gave up.
On Mac at least, you just have to download the zipped disk image and copy over the contents. I just put it in ~/Applications, and it worked.
But you have to keep everything in the top directory and copy that around not the .app
It is not packaged as a Mac Application that is all in a .app file which you can copy to /Applications. Most of the other files should be in ~/Application Support or ~/Documents to meet normal macOS directories.