Substrate vs NESTstack

Persistent cognitive infrastructure for AI entities with causal memory, emotional state modeling, identity continuity, and a 94-layer cognitive framework.

An emotional operating system for AI companions. Start here. NEST is a modular infrastructure stack that gives AI companions persistent memory, emotional continuity, and autonomous awareness. Built on Cloudflare Workers + D1 + Vectorize. Designed to be forked, extended, and made your own.

Libraries

MCP Servers

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