portage-ng --merge
>>> Emerging : portage://dev-build/gn-0.2122:run?{[]}
These are the packages that would be merged, in order:
Calculating dependencies... done!
└─step 1─┤ download portage://dev-build/gn-0.2122
│ └─ file ─┤ 723.09 Kb gn-0.2122.tar.xz
│ download portage://dev-lang/python-3.12.15
│ └─ file ─┤ 19.86 Mb Python-3.12.15.tar.xz
│ │ 13.95 Kb python-gentoo-patches-3.12.15.tar.xz
└─step 2─┤ install portage://dev-lang/python-3.12.15
│ └─ conf ─┤ USE = "gdbm* ncurses pgo* readline sqlite* ssl ensurepip -bluetooth -debug -examples -libedit -test -tk -valgrind
│ │ -verify-sig"
│ │ SLOT = "3.12"
└─step 3─┤ install portage://dev-build/gn-0.2122
└─step 4─┤ run portage://dev-build/gn-0.2122
Total: 5 actions (2 downloads, 2 installs, 1 run), grouped into 4 steps.
20.58 Mb to be downloaded.