Secure P2P messaging over public MQTT with key-authenticated, broker-agnostic signaling for NAT traversal and decentralized networking.
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Updated
May 26, 2026 - Python
Secure P2P messaging over public MQTT with key-authenticated, broker-agnostic signaling for NAT traversal and decentralized networking.
A self-hosted, federated, zero-knowledge encrypted mail system in a single PHP file. AES-256-GCM encryption, PBKDF2 key derivation, and encrypted attachments ensure the server never sees your message password. No SMTP. No external dependencies. Just drop xmail.php and go.
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