portage-ng --merge
>>> Emerging : portage://sci-mathematics/z3-5.1.0:run?{[]}
These are the packages that would be merged, in order:
Calculating dependencies... done!
└─step 1─┤ download portage://sci-mathematics/z3-5.1.0
│ └─ file ─┤ 6.38 Mb z3-5.1.0.tar.gz
└─step 2─┤ install portage://sci-mathematics/z3-5.1.0
│ └─ conf ─┤ USE = "gmp* python* -doc -examples -isabelle -java"
│ │ PYTHON_SINGLE_TARGET = "python3_14 -python3_12 -python3_13"
│ │ SLOT = "0/5.1"
└─step 3─┤ run portage://sci-mathematics/z3-5.1.0
Total: 3 actions (1 download, 1 install, 1 run), grouped into 3 steps.
6.38 Mb to be downloaded.