x64 vs arm64 build: sizable difference in items count

[ndesktop]

Just building 7559 branch and I notice that for x64 build (if I'm not mistaken) the build starts with some ~80.000 items to build.
Just fired up arm64 build and it displays ~117.000 items.
What would be the sizable difference come from? I mean, for sure there are different things, but approx. 40.000 files is 33% more things to build.

[magreenblatt]

The arm64 build is cross-compiled, which requires building multiple versions of various things (for host and/or target architecture, depending on how they’re used).