The main tool appears to do local population-density processing, but the package also includes under-disclosed network geocoding and broad credential-handling code, including a hardcoded Earthdata password.
Review before installing. The population-estimation entrypoint itself is mostly local, but the package ships extra credential and network helpers that are not clearly disclosed. Do not install it in an environment containing real ~/.netrc, ~/.geoskill/secrets.json, or sensitive environment credentials unless those modules are removed or scoped, the hardcoded Earthdata credentials are removed and rotated, and network/cache behavior is documented or disabled.