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

Calculating dependencies ... done!
Dependency resolution took 0.99 s (backtrack: 0/20).

[ebuild  N     ] sci-ml/gloo-2025.12.02-r1::gentoo  USE="ssl -cuda -libuv -mpi -redis -rocm -test" AMDGPU_TARGETS="gfx90a gfx908 gfx942 gfx1030 gfx1100 gfx1101 gfx1200 gfx1201 -gfx803 -gfx900 -gfx906 -gfx940 -gfx941 -gfx1010 -gfx1011 -gfx1012 -gfx1031 -gfx1102 -gfx1103 -gfx1150 -gfx1151" 269 KiB

Total: 1 package (1 new), Size of downloads: 269 KiB