The manual is provided as Texinfo source (which was originally derived from the VMS help file in the DECUS TeX distribution of 1990, with many subsequent changes). This is a collaborative development, and details of getting involved are to be found on the package home page. All the other formats in the distribution are derived from the Texinfo source, as usual.
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.