openbsd-ports/sysutils/runit/pkg
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README

+-----------------------------------------------------------------------
| Running ${PKGSTEM} on OpenBSD
+-----------------------------------------------------------------------

You will need to add

    csh -cf '${PREFIX}/sbin/runsvdir-start &'

to /etc/rc.local in order to have runit start at boot.

Read ${PREFIX}/share/doc/runit/upgrade.html on update.