portage-ng --merge
>>> Emerging : portage://media-libs/openh264-2.3.1-r3:run?{[]}
These are the packages that would be merged, in order:
Calculating dependencies... done!
└─step 1─┤ download portage://media-libs/openh264-2.3.1-r3
│ └─ file ─┤ 10.66 Kb gmp-api-Firefox114_2-e7d30b921df736a1121a0c8e0cf3ab1ce5b8a4b7.tar.gz
│ │ 57.50 Mb openh264-2.3.1.tar.gz
└─step 2─┤ install portage://media-libs/openh264-2.3.1-r3
│ └─ conf ─┤ USE = "plugin -test -utils"
│ │ CPU_FLAGS_X86 = "avx2"
│ │ SLOT = "0/7"
└─step 3─┤ run portage://media-libs/openh264-2.3.1-r3
Total: 3 actions (1 download, 1 install, 1 run), grouped into 3 steps.
57.51 Mb to be downloaded.