It’s a very minor issue, but under Linux the standard architecture names are “i386” for 32-bit and “x86_64” or “amd64” for 64-bit packages. The “x64” abbreviation is only generally used on Windows.
Yes, but on the other hand: the term “amd64” implies you need an AMD cpu which simply is not true.
The architecture name is amd64, even when using intel processors. I suggest x86_64
+1 for x86_64. This is the convention that most Linux distributions use for packaging so most Linux users are used to that.