A set of shell scripts and aliases that improve your shell usage. Automatically prints system status reports when a shell boots up, does basic monitoring, sets useful aliases, can even print an ASCIIfied logo when you log in. Tries to be configurable; you can pick only the stuff you want when you install it and has its own configuration files. Called from your ~/.bashrc file. Easy to uninstall, too:
rm -rf ~/.config/synth-shell/
Does not work so well on OSX. Seems to be Linux-specific, regardless of the fact that it uses bash.