portage-ng --merge
>>> Emerging : portage://media-libs/openh264-2.6.0:run?{[]}
These are the packages that would be merged, in order:
Calculating dependencies... done!
└─step 1─┤ download portage://media-libs/openh264-2.6.0
│ └─ file ─┤ 10.70 Kb gmp-api-Firefox135-1f5a2f07a565a9465c14d3a8b12f3202f83c775e.tar.gz
│ │ 57.51 Mb openh264-2.6.0.tar.gz
└─step 2─┤ install portage://media-libs/openh264-2.6.0
│ └─ conf ─┤ USE = "plugin -test -utils"
│ │ CPU_FLAGS_X86 = "avx2"
│ │ SLOT = "0/8"
└─step 3─┤ run portage://media-libs/openh264-2.6.0
Total: 3 actions (1 download, 1 install, 1 run), grouped into 3 steps.
57.52 Mb to be downloaded.