app-dicts/myspell-nb-2.0.10:HOMEPAGE=http://spell-norwegian.alioth.debian.org/ app-dicts/myspell-nb-2.0.10:SRC_URI=https://alioth.debian.org/frs/download.php/2357/no_NO-pack2-2.0.10.zip
Found a working source with same checksum at https://alioth-archive.debian.org/releases/spell-norwegian/spell-norwegian/2.0.10/no_NO-pack2-2.0.10.zip Would indeed suggest https://wiki.gentoo.org/wiki/No_homepage for HOMEPAGE.
https://sources.gentoo.org/repo/gentoo.git/commit/?id=5017cdfae40450b7d56e1519c20cb38824b3f556