Problems for obadz-nixos@obadz.com

Repository Metapackage Package name Maintainer Problem
nixpkgs stable hyena hyena obadz-nixos@obadz.com Homepage link "https://wiki.gnome.org/Hyena" is dead (HTTP error 503) for more than a month.
nixpkgs stable unionargparser UnionArgParser obadz-nixos@obadz.com Homepage link "http://nessos.github.io/UnionArgParser/" is dead (HTTP error 404) for more than a month.
nixpkgs unstable hyena hyena obadz-nixos@obadz.com Homepage link "https://wiki.gnome.org/Hyena" is dead (HTTP error 503) for more than a month.
nixpkgs unstable unionargparser UnionArgParser obadz-nixos@obadz.com Homepage link "http://nessos.github.io/UnionArgParser/" is dead (HTTP error 404) for more than a month.