portage-ng --merge
>>> Emerging : portage://sci-electronics/puff-20181104-r1:run?{[]}
These are the packages that would be merged, in order:
Calculating dependencies... done!
└─step 1─┤ download portage://dev-lang/fpc-3.2.2
│ └─ file ─┤ 49.82 Mb fpc-3.2.2.source.tar.gz
│ │ 82.95 Mb fpc-3.2.2.x86_64-linux.tar
│ │ 80.30 Mb fpcbuild-3.2.2.tar.gz
│ download portage://sci-electronics/puff-20181104-r1
│ └─ file ─┤ 420.02 Kb puff-20181104.tgz
└─step 2─┤ install portage://dev-lang/fpc-3.2.2
│ └─ conf ─┤ USE = "-doc -source"
└─step 3─┤ install portage://sci-electronics/puff-20181104-r1
└─step 4─┤ run portage://sci-electronics/puff-20181104-r1
Total: 5 actions (2 downloads, 2 installs, 1 run), grouped into 4 steps.
213.47 Mb to be downloaded.