These are the packages that would be merged, in order:

Calculating dependencies ... done!
Dependency resolution took 1.62 s (backtrack: 0/20).

[ebuild  N     ] x11-misc/xkeyboard-config-2.48::gentoo  USE="-test" 931 KiB
[ebuild  N     ] x11-libs/libxkbcommon-1.13.2::gentoo  USE="X -doc -static-libs -test -tools -wayland" 1215 KiB
[ebuild     U  ] sys-apps/kbd-2.10.0::gentoo [2.9.0-r1::gentoo] USE="bzip2 nls pam xkb%* zlib -lzma (-selinux) -test -zstd" 1747 KiB

Total: 3 packages (1 upgrade, 2 new), Size of downloads: 3892 KiB