sudo IO-plugin to require a live human pair
Macros to easily write custom sudo plugins
DigitalOcean Username Generator
A lightweight Rust crate to check if a GitHub username / handle is valid
A Joe username generator
Cross-language module for generating Wikidot-like username modules
Portably retrieve the user name (and possibly other information in future versions) of the user running the current thread.
An opinionated blacklist of words that you might not like to see used as usernames in your service