> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.nvidia.com/holoscan/sdk-user-guide/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.nvidia.com/holoscan/sdk-user-guide/_mcp/server.

# holoscan::load_stable_host_id

> Load a stable host identifier for native-buffer discovery advertisement.

```cpp showLineNumbers={false}
std::string holoscan::load_stable_host_id()
```

Load a stable host identifier for native-buffer discovery advertisement.

Checks HOLOSCAN\_HOST\_ID env var first, then /etc/machine-id, then /var/lib/dbus/machine-id. Returns empty string if none found.