The dashboard entrypoint mostly performs local GIS processing, but the package also ships under-disclosed credential, download, caching, and network behavior that does not fit the stated offline dashboard purpose.
Treat this as a Review item before installing. The main dashboard command appears local and bounded, but the package should not be used in sensitive environments unless the hardcoded credentials are removed, the credential/downloader helpers are justified or stripped, and the documentation clearly states the browser-side network requests and any geocoding/cache behavior.