Unmoor: Open-Source Encrypted UDP Terminal Offers Post-Quantum Security

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A developer has released Unmoor 0.1.0, an experimental encrypted and authenticated UDP-based remote terminal for Linux and macOS that aims to improve on existing tools like Mosh. Unlike Mosh, which synchronizes terminal screen state, Unmoor repairs the byte stream and applies backpressure to prevent silent data loss when history buffers fill. Sessions are tied to cryptographic identities rather than network addresses, allowing them to survive IP changes or NAT transitions as long as a UDP path is available. Authentication is bootstrapped over SSH, and each session uses hybrid X25519 plus ML-KEM-1024 key agreement, with post-quantum encryption enabled by default. The project is experimental, has not undergone an external security audit, and was developed with AI assistance, with the author retaining responsibility for all design decisions.

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