I built a crash-safe AI memory daemon that survives kill -9. Here's what it does.

I told Ollama "I just moved to Austin." Then I opened Claude Desktop and asked "where do I live?" Claude said Austin. I never told Claude anything. Both apps were reading and writing to the same memory daemon on my machine. That's BubbleFish Nexus. This post is about what it does, why I built it, and what I learned shipping it solo over the past few months. The problem Every AI app keeps its own memory silo. ChatGPT doesn't know what you told Claude. Claude doesn't know what you told Ollama. OpenClaw doesn't know what any of them know. Switch tools and you re-explain everything. There are hosted memory services that solve this, but they all want your data on their servers. I wanted something different: one daemon you run yourself that any AI client can connect to, with the same memory shared across all of them. What Nexus is A single Go binary. AI clients connect over HTTP, MCP, or OAuth 2.1. Every write goes through the same pipeline — auth, policy check, durable write, queue dispatch