You're writing a library. You've decided to be ambitious, and support multiple async I/O packages, like Trio, and asyncio, and... You've written a bunch of clever code to handle all the differences. But... how do you know which piece of clever code to run? This is a tiny package whose only purpose is to let you detect which async library your code is running under.
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.