mpg is a command-line tool that generates strings of random characters that can be used as reasonably secure passwords.
Please see the full documentation in the docs directory, also available at https://mcornick.com/mpg/.
mpg itself is stable; the experiments I do with building and packaging it are not. If something looks broken, I'm probably working on fixing it; if I don't get around to it, please let me know by filing an issue.
mpg is available as open source under the terms of the MIT License.