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

Calculating dependencies ... done!
Dependency resolution took 0.96 s (backtrack: 0/20).

[ebuild  N     ] dev-lang/nim-2.2.12::gentoo  USE="-test -test-js" 10078 KiB

Total: 1 package (1 new), Size of downloads: 10078 KiB