Spectacle allows you to organize your windows without using a mouse.

KeyCastr, an open-source keystroke visualizer

Staggeringly powerful macOS desktop automation with Lua

Mac app that shows all open files, directories, sockets, pipes and devices in use by all running processes. Nice GUI for lsof.

A window management application (replacement for Divvy/SizeUp/ShiftIt)

OS X menubar status indicator

Managing windows size and position in OSX

A lightweight macOS window and app manager scriptable with JavaScript

A few code snippets from my Xcode arsenal

my fork of MenuMeters by http:https://www.ragingmenace.com/software/menumeters/

Quark Shell for Mac helps web developers to create native-like Mac menubar app using HTML and JavaScript without writing any native code.

macOS window manager with Vim–like hotkeys

A Mac App for finding GIFs

Example of using React Native in existing iOS application

Don't be yourself, be everyone else