Just use OTR... Just use Signal protocol... Just use a server... The problem of unstoppable, private group messaging is SO much bigger and SO much harder than anyone gives it credit for (including me). There are many shortcuts. There are many half-baked solutions that might get short-term adoption. Building the thing right has pushed me to the limit many times over the last few years. And yet, I'm still here. Still learning, still building. I'm not going to give up, and I'm not going to cut corners.