OKRs.app - Reach your personal goals with OKRs
Plug - Lightweight OSX player for Hype Machine
Simple OKR - Track, measure and manage OKRs
Rocketgraph - Rocketgraph is an open-source drop in replacement to Firebase, except it's much better.
Focus - New Tab page that gives you a moment of calm and inspires you to be more productive.
Muru Music - Personalised playlists within seconds.