The package supports XeTeX' (and other putative future similar engines') need for Unicode characters, in a similar way to what the fontenc does for 8-bit (and the like) fonts: convert accent-glyph sequence to a single character in the output encoding.
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.