portage-ng --merge
>>> Emerging : portage://app-misc/task-3.4.2:run?{[]}
These are the packages that would be merged, in order:
Calculating dependencies... done!
└─step 1─┤ download portage://app-misc/task-3.4.2
│ └─ file ─┤ 163.53 Kb libshared-15cb6f90f25758612d79f788095a4c3a9c090b89.gh.tar.gz
│ │ 1.33 Mb task-3.4.2.gh.tar.gz
│ │ 26.30 Mb taskwarrior-3.4.2-crates.tar.xz
│ download portage://dev-build/corrosion-0.6.1-r1
│ └─ file ─┤ 100.91 Kb corrosion-0.6.1.tar.gz
└─step 2─┤ install portage://dev-build/corrosion-0.6.1-r1
│ └─ conf ─┤ USE = "-debug -test"
└─step 3─┤ install portage://app-misc/task-3.4.2
│ └─ conf ─┤ USE = "-debug -test"
└─step 4─┤ run portage://app-misc/task-3.4.2
Total: 5 actions (2 downloads, 2 installs, 1 run), grouped into 4 steps.
27.88 Mb to be downloaded.