Google Test
dir: googletest (submodule)
url: https://github.com/wwivbbs/googletest
license: New BSD

PD Curses
dir: pdcurses
fork: https://github.com/wwivbbs/PDCurses
url:  https://github.com/wmcbrine/PDCurses
license: Public Domain

InfoZIP
dir: infozip
url: http://www.info-zip.org/
license: New BSD

Cereal
dir cereal
url: https://github.com/USCiLab/cereal/
license: New BSD

My-Basic
dir:  my_basic
fork: https://github.com/wwivbbs/my_basic
url:  https://github.com/paladin-t/my_basic/commit/144d39285198222da8d55e612c51bf39be600a8f
License: MIT

FMT
dir fmt
fork: https://github.com/wwivbbs/fmt
url:  https://github.com/fmtlib/fmt
License: BSD 2-Clause "Simplified" License
