portage-ng --merge
>>> Emerging : portage://sci-mathematics/abc-0_p20230313:run?{[]}
These are the packages that would be merged, in order:
Calculating dependencies... done!
└─step 1─┤ download portage://sci-mathematics/abc-0_p20230313
│ └─ file ─┤ 5.80 Mb abc-0_p20230313.tar.gz
└─step 2─┤ install portage://sci-mathematics/abc-0_p20230313
│ └─ conf ─┤ USE = "readline threads*"
└─step 3─┤ run portage://sci-mathematics/abc-0_p20230313
Total: 3 actions (1 download, 1 install, 1 run), grouped into 3 steps.
5.80 Mb to be downloaded.