portage-ng --merge
>>> Emerging : portage://media-libs/tiff-4.5.1:run?{[]}
These are the packages that would be merged, in order:
Calculating dependencies... done!
└─step 1─┤ download portage://media-libs/tiff-4.5.1
│ └─ file ─┤ 2.12 Mb tiff-4.5.1.tar.xz
└─step 2─┤ downgrade portage://media-libs/tiff-4.5.1 (replaces pkg://media-libs/tiff-4.7.1)
│ └─ conf ─┤ USE = "jpeg* zlib cxx -jbig -lzma -static-libs -test -verify-sig -webp -zstd"
│ │ SLOT = "0/6"
└─step 3─┤ run portage://media-libs/tiff-4.5.1
Total: 3 actions (1 download, 1 downgrade, 1 run), grouped into 3 steps.
2.12 Mb to be downloaded.