portage-ng --merge
>>> Emerging : portage://net-libs/nghttp3-1.13.1:run?{[]}
These are the packages that would be merged, in order:
Calculating dependencies... done!
└─step 1─┤ download portage://net-libs/nghttp3-1.13.1
│ └─ file ─┤ 397.24 Kb nghttp3-1.13.1.tar.xz
└─step 2─┤ downgrade portage://net-libs/nghttp3-1.13.1 (replaces pkg://net-libs/nghttp3-1.15.0)
│ └─ conf ─┤ SLOT = "0/0"
└─step 3─┤ run portage://net-libs/nghttp3-1.13.1
Total: 3 actions (1 download, 1 downgrade, 1 run), grouped into 3 steps.
397.24 Kb to be downloaded.