Pulover’s Macro Creator - Pulover’s Macro Creator is a Free Automation Tool and Script Generator.
f.lux - f. lux is a piece of software for Windows, Mac, Linux, iOS, and Android that provides a blue light filter over your screen. Research suggests limiting our exposure to blue light in the hours before bedtime can help us fall asleep faster.
AutoKey - A Python 3 port of AutoKey, the desktop automation utility for Linux and X11.
CareUEyes - CareUEyes is an eye protection software for windows that comes with blue light filter, screen dimmer, and break reminder
Hammerspoon - This is a tool for powerful automation of OS X.
Redshift Color Temperature Adjuster - Redshift adjusts the color temperature according to the position of the sun.