The problem I kept running into Every "private" messenger I found had the same tradeoffs: Signal → needs your phone number. That's an identity anchor. Telegram → not E2E by default. Server-side messages. WhatsApp → Meta. Enough said. Matrix/Element → self-host complexity, still needs an account. Briar → great, but mobile-only and requires install. I wanted something where neither party has to prove who they are to anyone — not to a server, not to a phone carrier, not to an app store. Just open a browser, agree on a channel ID and a PIN, and talk. That's it. So I built it. What Nulkratos-Core actually does It's a single HTML file. No backend logic. No user database. No plaintext ever touches the server.…