Make Amiberry available for x86_64 as well about retropie-setup HOT 3 CLOSED

In fact, on x86-64 you could use the newer and more compatible preview branch, which contains v6.x
It's a bit more demanding in CPU power, which is why it hasn't completely replaced v5.x yet. But that's not an issue for x86, only for RPI3/RPI4 (RPI5 is fast enough to run everything full speed even in v6.x).

from retropie-setup.

Note: if you want to avoid the whole PLATFORM=XYZ thing, you could alternatively use CMake to build it, also.
It will automatically detect between Linux or macOS (though I'm guessing you don't have a macOS RetroPie installation), and build using the native arch anyway. You could still probably get more optimized binaries with the specific CPU flags, however.

from retropie-setup.

Is there a reason why Amiberry is not enabled/available for x86_64 platforms a well?
It runs quite well there for a few years now, so perhaps this was missed?

Yes, the addition of the PC platform in Amiberry wasn't reflected in our scriptmodule. I guess that either there's no much demand for Amiga emulation on x86-64 or the existing users are content with FS-UAE,
I'm also aware of the preview / v6 branch, but since Amiberry we target ARM/SBCs, we're a bit under-powered for that. I guess we can enable Amiberry for PC archs also - I guess I'll add my comments on #3938.

from retropie-setup.