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

Calculating dependencies ... done!
Dependency resolution took 0.98 s (backtrack: 0/20).

[ebuild   R    ] net-libs/ngtcp2-1.21.0::gentoo  USE="openssl ssl -gnutls -verify-sig" 672 KiB

Total: 1 package (1 reinstall), Size of downloads: 672 KiB