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src/freedombone-app-matrix

 
     matrix_nginx
 
-    add_user_matrix "${MY_USERNAME}" "${MATRIX_PASSWORD}"
+    if [[ $(add_user_matrix "${MY_USERNAME}" "${MATRIX_PASSWORD}" | tail -n 1) != "0" ]]; then
+        echo $'Failed to add matrix admin user';
+        exit 879352
+    fi
 
     APP_INSTALLED=1
 }