We put 3 years of development and art into Relm and open sourced it about a year ago when we couldn't make it commercially successful. It's been a wonderful journey, and if it's helpful to someone, we hope it brings people together.<p>Relm uses Twilio audio/video, threejs for 3D in the browser, and Svelte for the UI. It was developed primarily by one developer (me) and several talented designer and artists.