The main InSAR tool appears to run locally, but the package also ships under-disclosed credential, network geocoding, download, and cache code, including hardcoded Earthdata fallback credentials.
Review before installing. The core InSAR script is local, but the package includes extra network and credential modules that are not clearly documented; do not install it in an environment with sensitive .netrc, ~/.geoskill/secrets.json, or environment secrets unless those modules are removed or the publisher narrows and discloses them. The embedded Earthdata credentials should be removed and rotated by the publisher.