Metalsmith - An extremely simple, pluggable static site generator.
Teeny Breaks - Mindfulness tips to make the most of your breaks 🧠💖
Nikola - Nikola is s static site generator tool written in Python.
Stretch From Home - Illustrated stretching routines for your home office
Assemble - The static site generator for Node.js, Grunt.js and Yeoman
Focus - New Tab page that gives you a moment of calm and inspires you to be more productive.