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

Calculating dependencies ... done!
Dependency resolution took 1.02 s (backtrack: 1/20).

[ebuild  N     ] dev-lang/go-bootstrap-1.24.6::gentoo  USE="(-big-endian)" 71370 KiB
[ebuild  N     ] acct-group/postfix_exporter-0-r3::gentoo  0 KiB
[ebuild  N     ] dev-lang/go-1.27.2:0/1.27.2::gentoo  CPU_FLAGS_X86="sse2" 34312 KiB
[ebuild  N     ] acct-user/postfix_exporter-0-r3::gentoo  0 KiB
[ebuild  N     ] app-metrics/postfix_exporter-0.3.0::gentoo  USE="(-systemd)" 10048 KiB

Total: 5 packages (5 new), Size of downloads: 115729 KiB