zxp19821005 [1] filed a deletion request for calamus-appimage [2]: The author has changed the name to orca.I've commited https://aur.archlinux.org/packages/orca-writer instead it.
[1] https://aur.archlinux.org/account/zxp19821005/ [2] https://aur.archlinux.org/pkgbase/calamus-appimage/
