diff --git i/pdsadmin.sh w/pdsadmin.sh
index 505ada3..afc3265 100644
--- i/pdsadmin.sh
+++ w/pdsadmin.sh
@@ -15,16 +15,11 @@ if [[ "${EUID}" -ne 0 ]]; then
   exit 1
 fi

-# Download the script, if it exists.
-SCRIPT_URL="${PDSADMIN_BASE_URL}/${COMMAND}.sh"
-SCRIPT_FILE="$(mktemp /tmp/pdsadmin.${COMMAND}.XXXXXX)"
+SCRIPT_FILE="NIXPKGS_PDSADMIN_ROOT/lib/pds/${COMMAND}.sh"

-if ! curl --fail --silent --show-error --location --output "${SCRIPT_FILE}" "${SCRIPT_URL}"; then
+if ! [ -f "${SCRIPT_FILE}" ]; then
   echo "ERROR: ${COMMAND} not found"
   exit 2
 fi

-chmod +x "${SCRIPT_FILE}"
-if "${SCRIPT_FILE}" "$@"; then
-  rm -f "${SCRIPT_FILE}"
-fi
+"${SCRIPT_FILE}" "$@"