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

Darwin/macOS emulation layer for Linux

A software update framework for macOS

Send User Notifications on macOS from the command-line.

A lightweight macOS window and app manager scriptable with JavaScript

Screensaver for macOS

Unix time (epoch) flip clock macOS screensaver

A screensaver for Mac OSX / macOS that plays animated GIFs and APNGs

Instagram filters hacked and open sourced. Supports both photo and video.

The WAYSourceListWindow is a NSWindow subclass, which splits the window space vertically into the master view on the left, and the detail view on the right side as known from apps like Reminders or…

A NSWindow subclass with a beautiful glass-like title bar

A NSWindow subclass that makes auto hiding and showing the title bar (à la QuickTime X) a lot easier, and allows for a custom title bar drawing block.

Capturing screenshot of an NSWindow by passing the WindowID