The package defines an environment that only typesets specified environments within its scope. So, for example, if you want nothing but the figure and table environments in your document, you can enclose the whole document with an xcomment environment that excludes everything but. This is a lot easier than excluding the chunks of text between the environments you want, or creating an entire document containing only those environments. The package was previously part of the seminar bundle for typesetting presentations.
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.