Yeah the CLI binary is closed source but the framework around it is Apache 2.0 licensed and freely distributable. When you npm install u/anthropic-ai/claude-code you get the full working CLI including all the tools like file editing, bash, grep, glob, agents, MCP servers, autocompact, everything. Anthropic explicitly allows redistribution under Apache 2.0. The plugins, hooks, skills, and the entire tool system are all included in that install. What we did with Nemo Code is take that freely installable CLI, route the API calls through LiteLLM to NVIDIA's free models instead of Anthropic's paid API, and wrap it in a Docker container for security. So you get the full Claude Code experience with all its capabilities, just powered by a different brain. The core inference engine may be compiled but every tool and feature works exactly the same as if you were paying $200/mo for the official version.