The FUSE-based union file system allows several directories to be stacked under one mountpoint - this will produce the effect of having a number of directories merged under one mountpoint. This utility is implemented at the user level - to mount a series of roots, simply use: unionfs /dir1:/dir2:/dir3 /mnt
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.