no

to simplify the installation, you get g64, you install the g64 installer, (https://github.com/ckosmic/G64Installer/releases/tag/v1.0.0) and you get the .z64 rom. put the .z64 rom anywhere, just remember where to locate it. once you open the 64 bit branch in gmod, select a map. after that, you go to the utilities tab. (if you don't know where it is, it's one of the tabs above the tools for the toolgun) go under g64 and hit settings. either paste where the .z64 file is or hit browse. locate the .z64 file on your computer, select it, then hit open. go to the g64 tab. (next to entities) hopefully this works for you