Man pages matching name sm-notify in section 8:

sm-notify.8.en	debian 10 / nfs-common
sm-notify.8.fr	debian 11 / manpages-fr
sm-notify.8.en	debian 11 / nfs-common
sm-notify.8.fr	debian 12 / manpages-fr
sm-notify.8.en	debian 12 / nfs-common