gnome-extra/gnome-software works totally fine on my `~arm64` machine. added it to package.accept_keyword and there was no problems during compilation, and the app itself works fine.
Unable to check for sanity: > no match for package: foo/bar
Sanity check failed: > gnome-extra/gnome-software-44.1 > depend ~arm64 stable profile default/linux/arm64/17.0 (12 total) > dev-libs/libglib-testing > depend ~arm64 dev profile default/linux/arm64/17.0/hardened/selinux (2 total) > dev-libs/libglib-testing
arm64 done all arches done