Optional: OmniRig but only V1.2
Unzip the VarAC package before running VarAC.exe
1280 X 800 screen resolution or higher
Windows 8.1 and above (some hams reported that Win7 also works. but officially it's not supported)
.NET framework 4.X or above
10MB of disk space.
A willingness to actually chat with hams and not only exchange reports like in FT8 🤣🤣