safetynet allows you to monitor and restart processes without having to write large and complicated init scripts. The config file is easy to understand and learn and you can have the whole script setup and running in under 10m, so you can get on with doing more important things than worrying if your ssh daemon is still running. You will probably want to add a crontab entry for root (crontab -e as root) such as 0,15,30,45 * * * * ${PREFIX}/bin/safetynet --cron which will cause the script to be run every 15 minutes.
Binary packages can be installed with the high-level tool pkgin (which can be installed with pkg_add) or pkg_add(1) (installed by default). The NetBSD packages collection is also designed to permit easy installation from source.
The pkg_admin audit command locates any installed package which has been mentioned in security advisories as having vulnerabilities.
Please note the vulnerabilities database might not be fully accurate, and not every bug is exploitable with every configuration.
Problem reports, updates or suggestions for this package should be reported with send-pr.