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

Calculating dependencies ... done!
Dependency resolution took 2.28 s (backtrack: 1/20).

[ebuild  N     ] x11-terms/kitty-shell-integration-0.49.1::gentoo  11712 KiB
[ebuild  N     ] dev-lang/go-bootstrap-1.24.6::gentoo  USE="(-big-endian)" 71370 KiB
[ebuild  N     ] dev-lang/go-1.27.2:0/1.27.2::gentoo  CPU_FLAGS_X86="sse2" 34312 KiB
[ebuild  N     ] x11-terms/kitty-terminfo-0.49.1::gentoo  0 KiB
[ebuild  N     ] x11-libs/libXcursor-1.2.3::gentoo  USE="-doc" 286 KiB
[ebuild  N     ] media-fonts/symbols-nerd-font-3.5.1::gentoo  USE="X" 2985 KiB
[ebuild     U  ] dev-util/spirv-headers-1.4.363.0::gentoo [1.4.341.0::gentoo] 581 KiB
[ebuild  N     ] dev-libs/miniz-3.1.2:0/3.1.2::gentoo  284 KiB
[ebuild  N     ] dev-util/vulkan-headers-1.4.363.0::gentoo  USE="-test" 3337 KiB
[ebuild     U  ] dev-util/spirv-tools-1.4.363.0::gentoo [1.4.341.0::gentoo] USE="-test" 3474 KiB
[ebuild  N     ] dev-util/glslang-1.4.363.0:0/16.6::gentoo  4528 KiB
[ebuild  N     ] x11-misc/xkeyboard-config-2.48::gentoo  USE="-test" 931 KiB
[ebuild  N     ] dev-libs/simde-0.8.2::gentoo  USE="-test" 7294 KiB
[ebuild  N     ] x11-libs/libXinerama-1.1.6::gentoo  USE="-doc" 263 KiB
[ebuild  N     ] app-arch/lz4-1.10.0-r1:0/1.10.0-meson::gentoo  USE="-static-libs -test" 379 KiB
[ebuild  N     ] dev-util/shader-slang-2026.18.3:0/2026.18.3::gentoo  31179 KiB
[ebuild  N     ] x11-libs/libxkbcommon-1.13.2::gentoo  USE="X -doc -static-libs -test -tools -wayland" 1215 KiB
[ebuild  N     ] x11-terms/kitty-0.49.1::gentoo  USE="X -test -verify-sig -wayland" PYTHON_SINGLE_TARGET="python3_14 -python3_12 -python3_13" 2452 KiB

Total: 18 packages (2 upgrades, 16 new), Size of downloads: 176573 KiB