iTerm2 is a terminal emulator for Mac OS X that does amazing things.

KeyCastr, an open-source keystroke visualizer

Staggeringly powerful macOS desktop automation with Lua

ˈyːbɐˌzɪçt

A lightweight macOS window and app manager scriptable with JavaScript

📦 Plugin, App, and Theme store which includes plugin injection for macOS

Restart/Sleep/Logout/Shutdown shortcuts in Spotlight