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

Calculating dependencies ... done!
Dependency resolution took 1.00 s (backtrack: 0/20).

[ebuild  N     ] sys-libs/zlib-ng-2.3.3::gentoo  USE="-compat -static-libs -test" CPU_FLAGS_X86="avx2 avx512f pclmul sse2 sse4_1 sse4_2 ssse3 -avx512_vnni -vpclmulqdq" 2391 KiB
[ebuild  N     ] sys-libs/minizip-ng-4.2.1:0/4::gentoo  USE="openssl -compat -lzma -test -zstd" 597 KiB

Total: 2 packages (2 new), Size of downloads: 2987 KiB