portage-ng --merge
>>> Emerging : portage://app-arch/libarchive-3.8.10:run?{[]}
These are the packages that would be merged, in order:
Calculating dependencies... done!
└─step 1─┤ download portage://app-arch/libarchive-3.8.10
│ └─ file ─┤ 6.42 Mb libarchive-3.8.10.tar.xz
└─step 2─┤ update portage://app-arch/libarchive-3.8.10 (replaces pkg://app-arch/libarchive-3.8.6)
│ └─ conf ─┤ USE = "acl bzip2 iconv xattr* e2fsprogs lzma zstd -blake2 -expat -lz4 -lzo -nettle -static-libs -test -verify-sig"
│ │ SLOT = "0/13"
└─step 3─┤ run portage://app-arch/libarchive-3.8.10
Total: 3 actions (1 download, 1 update, 1 run), grouped into 3 steps.
6.42 Mb to be downloaded.