portage-ng --merge
>>> Emerging : portage://sys-kernel/gentoo-sources-6.18.57:run?{[]}
These are the packages that would be merged, in order:
Calculating dependencies... done!
└─step 1─┤ download portage://sys-kernel/gentoo-sources-6.18.57
│ └─ file ─┤ 5.24 Mb genpatches-6.18-65.base.tar.xz
│ │ 2.12 Kb genpatches-6.18-65.extras.tar.xz
│ │ 147.16 Mb linux-6.18.tar.xz
└─step 2─┤ install portage://sys-kernel/gentoo-sources-6.18.57
│ └─ conf ─┤ USE = "build symlink -experimental -vanilla%"
│ │ SLOT = "6.18.57"
└─step 3─┤ run portage://sys-kernel/gentoo-sources-6.18.57
Total: 3 actions (1 download, 1 install, 1 run), grouped into 3 steps.
152.40 Mb to be downloaded.