hej! there are two old packages ([1],[2]) of musca which are bugged and outdated due to dmenu (see comments), both orphaned for some time. musca [3] includes those patches so there's no need for [1] and [2] anymore.
regards, nem [1] https://aur.archlinux.org/packages.php?ID=44862 [2] https://aur.archlinux.org/packages.php?ID=26902 [3] https://aur.archlinux.org/packages.php?ID=51494