portage-ng --merge
>>> Emerging : portage://media-libs/nv-codec-headers-12.1.14.1:run?{[]}
These are the packages that would be merged, in order:
Calculating dependencies... done!
└─step 1─┤ download portage://media-libs/nv-codec-headers-12.1.14.1
│ └─ file ─┤ 76.24 Kb nv-codec-headers-12.1.14.1.tar.gz
└─step 2─┤ install portage://media-libs/nv-codec-headers-12.1.14.1
└─step 3─┤ run portage://media-libs/nv-codec-headers-12.1.14.1
Total: 3 actions (1 download, 1 install, 1 run), grouped into 3 steps.
76.24 Kb to be downloaded.