Teamflow - Feel like a team again with your own virtual office
Bulma - Bulma is an open source CSS framework based on Flexbox and built with Sass. It's 100% responsive, fully modular, and available for free.
Pesto App - The digitally native, authentically human workplace.
Milligram - A minimalist CSS framework
Remotion - Motion capture and replay platform for mobile devices
Spectre.css - Lightweight, responsive and modern CSS framework for faster and extensible development.