k0kubun [1] filed a deletion request for xkremap [2]:

We renamed the project to xremap years ago. We no longer maintain this version. We maintain the newer version at xremap-x11-bin and xremap- hypr-bin instead.

[1] https://aur.archlinux.org/account/k0kubun/ [2] https://aur.archlinux.org/pkgbase/xkremap/