>>> Emerging : portage://net-libs/nghttp3-1.12.0:run?{[]}

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

Calculating dependencies... done!

 └─step  1─┤ download  portage://net-libs/nghttp3-1.12.0
             │           └─ file ─┤ 398.15 Kb  	 nghttp3-1.12.0.tar.xz

 └─step  2─┤ downgrade portage://net-libs/nghttp3-1.12.0 (replaces pkg://net-libs/nghttp3-1.15.0)
             │           └─ conf ─┤ SLOT = "0/0"

 └─step  3─┤ run     portage://net-libs/nghttp3-1.12.0

Total: 3 actions (1 download, 1 downgrade, 1 run), grouped into 3 steps.
       398.15 Kb to be downloaded.