portage-ng --merge
>>> Emerging : portage://dev-util/difftastic-0.69.0:run?{[]}
These are the packages that would be merged, in order:
Calculating dependencies... done!
└─step 1─┤ download portage://dev-libs/jemalloc-5.4.0-r2
│ └─ file ─┤ 892.39 Kb jemalloc-5.4.0.tar.bz2
│ download portage://dev-util/difftastic-0.69.0
│ └─ file ─┤ 24.17 Mb difftastic-0.69.0-crates.tar.xz
│ │ 14.79 Mb difftastic-0.69.0.gh.tar.gz
└─step 2─┤ install portage://dev-libs/jemalloc-5.4.0-r2
│ └─ conf ─┤ USE = "stats -debug -lazy-lock -prof -xmalloc"
│ │ SLOT = "0/2"
└─step 3─┤ run portage://dev-libs/jemalloc-5.4.0-r2
└─step 4─┤ install portage://dev-util/difftastic-0.69.0
│ └─ conf ─┤ USE = "-debug"
└─step 5─┤ run portage://dev-util/difftastic-0.69.0
Total: 6 actions (2 downloads, 2 installs, 2 runs), grouped into 5 steps.
39.83 Mb to be downloaded.