diff --git a/README.md b/README.md
index 24d711c9..35b46674 100644
--- a/README.md
+++ b/README.md
@@ -94,8 +94,9 @@ You can set up the app the following ways:
  * Using the UI
  * Manually editing the `config.json`
  * Through switches
-   * Like: `node backend/index.js --Server-port=3000 --Client-authenticationRequired=false`
+   * Like: `node start -- --Server-port=3000 --Client-authenticationRequired=false`
    * You can check the generated `config.json` for the config hierarchy
+   * Note: you can run the app to generate the config file only, by running `npm start -- --config-only`
  * Through environmental variable
    * like set env. variable `Server-port` to `3000`   
 
@@ -122,7 +123,7 @@ apt-get install build-essential  libkrb5-dev gcc g++
    ```bash
    npm run add-translation -- --fr
    ```
-   it creates a new `messages.fr.xls` file at `frontend/translate` folder, 
+   it creates a new `messages.fr.xls` file at `src/frontend/translate` folder, 
    it will already contain dummy translation with google translate.
 3. 'fix' the dummy translation
 4. test if it works:
diff --git a/docker/arm32v7/debian/stretch/Dockerfile b/docker/arm32v7/debian/stretch/Dockerfile
index fa106718..f499f9f4 100644
--- a/docker/arm32v7/debian/stretch/Dockerfile
+++ b/docker/arm32v7/debian/stretch/Dockerfile
@@ -1,6 +1,6 @@
 FROM arm32v7/node:10-stretch
 LABEL maintainer="Patrik J. Braun"
-
+# build tutorial: https://collabnix.com/building-arm-based-docker-images-on-docker-desktop-made-possible-using-buildx/
 
 RUN git clone https://github.com/bpatrik/pigallery2.git && \
     cd /pigallery2 && \
diff --git a/package.json b/package.json
index 2c100982..43962953 100644
--- a/package.json
+++ b/package.json
@@ -14,7 +14,7 @@
     "build-backend": "tsc",
     "pretest": "tsc",
     "test": "ng test && mocha --recursive test/backend/unit && mocha --recursive test/backend/integration  && mocha --recursive test/common/unit ",
-    "start": "node ./backend/index",
+    "start": "node ./src/backend/index",
     "run-dev": "ng build --aot --watch --output-path=./dist --i18n-locale en --i18n-file src/frontend/translate/messages.en.xlf --i18n-missing-translation warning",
     "build-stats": "ng build --aot --prod --stats-json --output-path=./dist --i18n-locale en --i18n-file src/frontend/translate/messages.en.xlf --i18n-missing-translation warning",
     "merge-new-translation": "gulp merge-new-translation",
diff --git a/src/common/config/private/ConfigClass.ts b/src/common/config/private/ConfigClass.ts
index e9fe6900..84cf5c58 100644
--- a/src/common/config/private/ConfigClass.ts
+++ b/src/common/config/private/ConfigClass.ts
@@ -32,6 +32,11 @@ export class ConfigClass extends PrivateConfigDefaultsClass implements IPrivateC
         ['MYSQL_DATABASE', 'Server-Database-mysql-database']]);
     this.removeComment();
 
+    if (process.argv.indexOf('--config-only')) {
+      console.log('started with \'--config-only\' flag. Saving config and exiting.');
+      process.exit();
+    }
+
     if (Utils.enumToArray(UserRoles).map(r => r.key).indexOf(this.Client.unAuthenticatedUserRole) === -1) {
       throw new Error('Unknown user role for Client.unAuthenticatedUserRole, found: ' + this.Client.unAuthenticatedUserRole);
     }