This gist describes how to add an `or` command that runs Claude Code via OpenRouter using the `openrouter/fusion` model without affecting the existing Claude setup.

It specifies secure storage of the `OPENROUTER_API_KEY` as an environment variable on macOS, Linux, and Windows, and configures a separate Claude config directory plus OpenRouter base URL and auth token for the wrapper. It details shell-specific profile edits (bash, zsh, fish, PowerShell) with managed comment blocks to avoid duplicates, and notes that while `openrouter/fusion` is used, advanced Fusion panel fields like `analysis_models` may not be configurable via the Claude CLI.