Wax Ships a Prebuilt Metal-Accelerated On-Device RAG MCP Server for Apple Silicon — But npm Publish Is Blocked on a Missing Token

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christopherkarani/Wax (777 stars, Apache-2.0, pure Swift) cut waxmcp v0.1.26 on 2026-08-16T10:01Z with prebuilt darwin-arm64 binaries for its MCP server and CLI, bundling MiniLM and Arctic embedders; it claims sub-millisecond RAG with no server and no API, as a single file. Apple Silicon is a hard requirement because MetalANNS Float16 needs arm64. The release notes state npm publish is blocked until a valid NPM_TOKEN secret is configured, so `npm install -g [redacted]` is not yet live — install from the GitHub release assets instead.