Xphoon sets X the root window to a picture of the moon in its current phase, including the partial lighting of the dark side by reflected earthlight. Picture is a monochrome dithered bitmap which is calculated via mathematical formulae. It keeps running on background updating the picture accordingly as time goes by.
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.