portage-ng --merge
>>> Emerging : portage://media-libs/amf-headers-1.4.33:run?{[]}
These are the packages that would be merged, in order:
Calculating dependencies... done!
└─step 1─┤ download portage://media-libs/amf-headers-1.4.33
│ └─ file ─┤ 188.96 Mb amf-headers-1.4.33.tar.gz
└─step 2─┤ install portage://media-libs/amf-headers-1.4.33
└─step 3─┤ run portage://media-libs/amf-headers-1.4.33
Total: 3 actions (1 download, 1 install, 1 run), grouped into 3 steps.
188.96 Mb to be downloaded.