MarsSeed [1] filed a deletion request for ndt [2]: Discontinued, deprecated, unused tool (file dates in the last release tarball are from 2015).
Upstream web page is also deleted, and it even shows 404 in web archives from 2014. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/ndt/
