Pre Arch Linux upravte /etc/pacman.conf a pridajte nasledujúce (Treba upozorniť, že poradie repozitárov v pacman.conf je dôležité, pretože pacman vždy stiahne prvý nájdený balík):
[home_post-factum_Arch]
Server = https://download.opensuse.org/repositories/home:/post-factum/Arch/$arch
Potom spustite ako root nasledujúce
key=$(curl -fsSL https://download.opensuse.org/repositories/home:post-factum/Arch/$(uname -m)/home_post-factum_Arch.key)
fingerprint=$(gpg --quiet --with-colons --import-options show-only --import --fingerprint <<< "${key}" | awk -F: '$1 == "fpr" { print $10 }')
pacman-key --init
pacman-key --add - <<< "${key}"
pacman-key --lsign-key "${fingerprint}"
pacman -Sy home_post-factum_Arch/goldendict