I love seamlessly moving from mobile to web on WhatsApp.<p>Is there any opensource solution which offers this? I am particularly concerned about WhatsApp's proprietary code.
Wire app. Not sure if Riot has a web app right now, but they plan to have one when they overhaul the UI at least:<p><a href="https://medium.com/@RiotChat/a-sneak-peek-at-a-whole-new-riot-im-1114df653782" rel="nofollow">https://medium.com/@RiotChat/a-sneak-peek-at-a-whole-new-rio...</a><p>Neither is P2P, but Riot is federated.
Please make this an Ask HN, with a question mark at the end,so as to not confuse other readers. Right now, it seems you're talking about an app that does this.