These are the packages that would be merged, in order:

Calculating dependencies ... done!
Dependency resolution took 1.55 s (backtrack: 0/20).

[ebuild     U  ] app-editors/nano-9.0::gentoo [8.7.1::gentoo] USE="ncurses nls spell (unicode) -debug -justify -magic -minimal -verify-sig" 1703 KiB

Total: 1 package (1 upgrade), Size of downloads: 1703 KiB