Singularity [1] filed a deletion request for lsdbus [2]: This Project is dead, the download link disappeared already two years ago and redirects to another project from the same folks. I also find only one other disto which packaged this, though they buildt the current package 7 years ago.
[1] https://aur.archlinux.org/account/Singularity/ [2] https://aur.archlinux.org/pkgbase/lsdbus/
