diff --git a/README.md b/README.md
index 170932f..61a125d 100644
--- a/README.md
+++ b/README.md
@@ -5,29 +5,53 @@
 
 Do you use a paper based tally sheet to count your team's coffee consumption? Throw it away and use `coffeebuddy`!
 
-## Usage
+## Setup
 
 Coffebuddy uses [pdm](https://pdm-project.org/en/latest/) to manage its python dependencies.
 
-1. Install dependencies
+Coffeebuddy is designed as a server-clients infrastructure.
+I'm using a RaspberryPi 4 as server and multiple RaspberryPis 3 as consumer endpoints.
+The endpoints are equipped with a smartcard reader and a touch screen for interaction.
 
-    ```sh
-    pdm sync
-    ```
+### Server
 
-    If `pyscard` fails building you might need to install dependencies. For Debian based distributions this would be
+#### Hardware (recommendation)
 
-    ```sh
-    sudo apt install swig libpcsclite-dev
-    ```
+- RaspberryPi 4
+- External SSD to store database
 
-2. Connect a pcsc smart card reader.
-   I use a [uTrust 4701f](https://support.identiv.com/4701f/).
-   Drivers for Ubuntu can be installed for example by
+#### Software
 
-    ```sh
-    sudo apt install pcscd pcsc-tools
-    ```
+The server runs postgresql and uses certificated based authentication on client side.
+Details are described in [Setting up postgresql database](./doc/postgresql.md).
+
+### Client
+
+#### Hardware (recommendation)
+
+- RaspberryPi 3
+- 7" touchscreen with 1024x600 pixel resolution
+- Identiv uTrust 1401f PCSC cardreader
+- 3D printed housing (see [doc/housing.md](./doc/housing.md)) including:
+  - a PIR for presence detection (see [coffeebuddy/pir.py](./coffeebuddy/pir.py))
+  - a multicolor LED for status indication (see [coffeebuddy/illumination.py](./coffeebuddy/illumination.py))
+
+#### Software
+
+1. Install cardreader dependencies
+   If using a PCSC cardreader and a Debian based distributions:
+
+   ```sh
+   sudo apt install swig libpcsclite-dev pcscd pcsc-tools
+   ```
+
+2. Install Python dependencies
+
+   ```sh
+   pip install --user pdm
+
+   pdm sync
+   ```
 
 3. Start `production` environment
 
@@ -35,28 +59,29 @@ Coffebuddy uses [pdm](https://pdm-project.org/en/latest/) to manage its python d
     ./bin/run.py
     ```
 
-    or `development` environment
+##### Debugging
 
-    ```sh
-    FLASK_ENV=development ./bin/run.py
-    ```
+The `development` environment can be run using
+
+```sh
+FLASK_DEBUG=1 ./bin/run.py
+```
 
 ## Tests
 
 Run tests with `pytest -v tests`
 
-
-## Application
+## Troubleshooting
 
 The final application uses a Raspberry Pi attached to a 7" touchscreen. Thus, the HTML an CSS is optimized for a display with a resolution of 1024x600.
 
-### Configuration for Raspberry Pi
+### Proper configuration for Clients
 
 #### Misc
 
 At least I had to adjust the following settings:
 
-* Fix screen resolution
+- Fix screen resolution
 
   ```conf
   hdmi_group=2
@@ -65,7 +90,7 @@ At least I had to adjust the following settings:
   hdmi_drive=2
   ```
 
-* If display has to be rotated by 180° adjust `/etc/X11/xorg.conf.d/40-libinput.conf`
+- If display has to be rotated by 180° adjust `/etc/X11/xorg.conf.d/40-libinput.conf`
 
   ```conf
   Section "InputClass"
@@ -77,7 +102,7 @@ At least I had to adjust the following settings:
   EndSection
   ```
 
-* Disable translation option in chrome
+- Disable translation option in chrome
 
 #### Card reader
 
diff --git a/bin/run.py b/bin/run.py
index da9eac2..7a2cb4d 100755
--- a/bin/run.py
+++ b/bin/run.py
@@ -25,7 +25,7 @@
         raise
     app.socketio.run(
         app,
-        use_reloader=False,
+        use_reloader=app.debug,
         host=app.config["HOST"] if "HOST" in app.config else "",
         ssl_context="adhoc" if app.config["SSL"] else None,
         allow_unsafe_werkzeug=True,