diff --git a/cleaner.py b/cleaner.py
index b8379c2..4a4a392 100644
--- a/cleaner.py
+++ b/cleaner.py
@@ -3,8 +3,14 @@ import signal
 import sys
 import time
 
-# Keep files for 73 hours  (3 days + 1 hours)
-MAX_FILE_AGE_SECONDS = (72 + 1) * 60 * 60
+# Keep files for 72 hours  (3 days)
+try:
+    MAX_FILE_AGE_SECONDS = int(os.environ.get('NP_MAX_FILE_AGE_HOURS', "72")) * 60 * 60
+except err:
+    print("Error: ")
+    print(err)
+    print("Using 72 hours instead !")
+    MAX_FILE_AGE_SECONDS = 72 * 60 * 60
 
 # Once done cleaning, sleep for 5 minutes
 SLEEP_TIME_SECONDS = 5 * 60
@@ -37,7 +43,7 @@ start_time = time.time()
 file_deleted_count = 0
 
 for item in os.listdir("/data/"):
-    item_path = os.path.join(folder_path, item)
+    item_path = os.path.join("/data/", item)
     
     if os.path.isdir(item_path):
         file_deleted_count = file_deleted_count + delete_old_files(item_path, start_time)
diff --git a/docker-compose.yml b/docker-compose.yml
index e285bb8..cc84c98 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -32,6 +32,7 @@ services:
       dockerfile: Dockerfile_cleaner
     environment:
       - TZ=Europe/Brussels
+      - "NP_MAX_FILE_AGE_HOURS=72"
     volumes:
       - ./recordings:/data
       - ./cleaner.py:/app/app.py:ro
@@ -43,6 +44,10 @@ services:
     ports:
       - 26880:80
     environment:
+      - "NP_CAM_cam1=Camera #1"
+      - "NP_CAM_cam2=Camera #2"
+      - "NP_TITLE=NibblePoker's Mini CCTV NVR"
+      - "NP_FOOTER=Made by <i>BOZET Herwin</i>"
       - TZ=Europe/Brussels
     volumes:
       - ./htdocs:/var/www/html  # Cannot be "ro" since the recordings are mounted into it.
diff --git a/htdocs/index.php b/htdocs/index.php
index f09b4fc..63cc70c 100644
--- a/htdocs/index.php
+++ b/htdocs/index.php
@@ -1,10 +1,17 @@
 <?php
-// List of all available cameras
-$camsInfo = [
-	# Format: [camId, camName]
-	["cam1", "Cam #1"],
-	["cam2", "Cam #2"]
-];
+// Grabbing the camera's info
+
+$camsInfo = [];  // Format: [[camId, camName], ...]
+
+foreach ($_ENV as $envKey => $envValue) {
+	if (strpos($envKey, 'NP_CAM_') === 0) {
+		array_push($camsInfo, [substr($envKey, strlen('NP_CAM_')), $envValue]);
+	}
+}
+
+// Grabbing the other env variables.
+$pageTitle = $_ENV['NP_TITLE'] ?? 'NibblePoker\'s Mini CCTV NVR';
+$pageFooter = $_ENV['NP_FOOTER'] ?? 'Made by <a href="https://github.com/aziascreations">BOZET Herwin</a> on <a href="https://github.com/aziascreations/Docker-Mini-CCTV-NVR">Github</a>';
 
 // Root location of all recordings.  (Not used yet)
 $rootLocation = "./data/";
@@ -102,7 +109,7 @@ function sizeFormat($bytes) {
 	<meta name="viewport"
 		  content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
 	<meta http-equiv="X-UA-Compatible" content="ie=edge">
-	<title>NibblePoker's Mini CCTV NVR</title>
+	<title><?php echo($pageTitle); ?></title>
 	<link rel="stylesheet" href="/css/simplette.all.min.css">
 	<style>
 		#video-selector {
@@ -139,13 +146,13 @@ function sizeFormat($bytes) {
 			?>
 		</ul>
 	</nav>
-	<header><h1><b>NibblePoker's Mini CCTV NVR</b></h1></header>
+	<header><h1><b><?php echo($pageTitle); ?></b></h1></header>
 	<hr><hr>
 	<div class="margin-container auto-paragraph-margin">
 		<table style="width: 100%;">
 			<tr>
 				<td>
-					<h3 style="width: 100%;">Caméra: <i><?php echo($camName); ?></i></h3>
+					<h3 style="width: 100%;">Camera: <i><?php echo($camName); ?></i></h3>
 				</td>
 				<td>
 					<span style="float: right;"><?php
@@ -201,8 +208,7 @@ function sizeFormat($bytes) {
 	</div>
 	<hr><hr>
 	<footer>
-		<!-- Feel free to change this to something less invasive, or simply stats.  Your imagination is the limit :) -->
-		<p>Made by <a href="https://github.com/aziascreations">BOZET Herwin</a> on <a href="https://github.com/aziascreations/Docker-Mini-CCTV-NVR">Github</a></p>
+		<p><?php echo($pageFooter); ?></p>
 	</footer>
 	<script>
 		<?php
diff --git a/readme.md b/readme.md
index 0ed463f..70dc9bc 100644
--- a/readme.md
+++ b/readme.md
@@ -2,16 +2,19 @@
 A mini docker stack that allows you to easily record, clean and serve CCTV recordings made over RSTP while using a
 minimal amount of system resources.
 
-## Preamble
-This stack records the camera's streams as-is and doens't re-encode or compress it which can cause it to use more disk space.<br>
-The highest I've got on my side is around 70 GiB per day for a 4K-ish cam with AAC audio.
+This stack is mainly intended to be used as a backup when other and more complete solutions crash or need to be shutdown.
 
-It is highly recommended to put the web page behind a secure reverse-proxy that requires authentication for aditional security.
+## Preamble
+This stack records the camera's streams as-is and doens't re-encode or compress it which uses more disk space.<br>
+See "[Usage statistics example](#usage-statistics-example)" for an example.
+
+If served out of your LAN, the web server should be behind a secure reverse-proxy that requires authentication.
 
 ## Setup
-Since the stack is a bit rough around the edges for simplicity''s sake you **will** need to setup a couple of things beforehand.
+All of the setup is done through environment variables in the [docker-compose.yml](docker-compose.yml) file.
 
-It should only take 2-3 minutes if you already have the RTSP URL on hand however.
+It should only take 2-3 minutes if you already have the RTSP URL on hand.<br>
+If you don't have them, you should see your camera's user manual and test the URLs with [VLC](https://www.videolan.org/vlc/).
 
 ### Cameras
 Each recording container needs to be given a RSTP stream URL and a unique folder into which the recordings will go.
@@ -19,7 +22,7 @@ Each recording container needs to be given a RSTP stream URL and a unique folder
 The URL must be given via the `NP_CCTV_URL` environment variable, and the output folder via a mounted volume that is
 mounted as `/data` in the container.
 
-Here is a simple example:
+#### Example:
 ```yaml
   cctv_recorder_cam1:
     container_name: cctv-recorder-cam1
@@ -37,26 +40,61 @@ Here is a simple example:
 This example will use the `rtsp://user:password@address:554/sub-path` URL and will put its recordings in `./recordings/cam1`.
 
 ### Cleaner
-The cleaner script named [cleaner.py](cleaner.py) only requires you to change 1 variable located near the top of the file.
+The cleaner script named [cleaner.py](cleaner.py) only requires you to set 1 environment variable named `NP_MAX_FILE_AGE_HOURS`
+to the max amount of hours any recording should be kept.
 
-The variable named `MAX_FILE_AGE_SECONDS` is used to indicate how long recordings should be kept for and is set to
-73 hours by default.
+If not set, the script will simply clean any recordings older than 72 hours.
 
-It can also be changed as you wish without recreating the stack since the script is "reloaded" on each run.
-
-### Web interface
-The web interface only requires you to give it the list of all cams' IDs and a friendly name in the `$camsInfo` variable.
-
-This variable is located at the top of the [htdocs/index.php](htdocs/index.php) file and should look like this:
-```php
-$camsInfo = [
-	# Format: [camId, camName]
-	["cam1", "Cam #1"],
-	["cam2", "Cam #2"]
-];
+#### Example
+```yaml
+  cctv_cleaner:
+    container_name: cctv-cleaner
+    build:
+      context: .
+      dockerfile: Dockerfile_cleaner
+    environment:
+      - TZ=Europe/Brussels
+      - "NP_MAX_FILE_AGE_HOURS=72"
+    volumes:
+      - ./recordings:/data
+      - ./cleaner.py:/app/app.py:ro
+    restart: unless-stopped
 ```
 
-The cam's ID refers to a subfolder of `./recordings` into which this cam's recordings are found as `.mp4` or `.mkv` files.
+### Web interface
+The web interface provides more customization options, but at its core, it only requires the camera's environment variables to be set.
+
+Each camera requires one of the following environment variable:<br>
+`NP_CAM_<camId> = <Camera's name>`
+
+Here is an example for `cam1` if named as `Camera #1`:<br>
+`NP_CAM_cam1 = Camera #1`
+
+#### Other variables
+| Variable    | Description                |
+| ----------- | -------------------------- |
+| `NP_TITLE`  | Page's title               |
+| `NP_FOOTER` | Page's footer HTML content |
+
+#### Example:
+```yaml
+  cctv_web:
+    container_name: cctv-web
+    image: php:apache
+    ports:
+      - 26880:80
+    environment:
+      - TZ=Europe/Brussels
+      - "NP_CAM_cam1=Camera #1"
+      - "NP_CAM_cam2=Camera #2"
+      - "NP_TITLE=NibblePoker's Mini CCTV NVR"
+      - "NP_FOOTER=Made by <i>BOZET Herwin</i>"
+    volumes:
+      - ./htdocs:/var/www/html  # Cannot be ":ro" since the recordings are mounted into it.
+      - ./apache2.conf:/etc/apache2/apache2.conf:ro
+      - ./recordings:/var/www/html/data:ro
+    restart: unless-stopped
+```
 
 ## Startup
 Once you have finished setting up the stack, you can simply run the following command:
@@ -65,12 +103,23 @@ docker-compose up --build -d
 ```
 
 ## Screenshots
-### Home page
 ![alt text](screenshots/home.png)
-
-### Camera's page with blurred preview
 ![alt text](screenshots/cam.png)
 
+## Usage statistics example
+* NanoPi R4S 4GB
+  * Uses 0.008 kWh / 8 Watts with other containers and USB HDD & USB SSD
+* 4 IP Cameras
+  * All H.256 4k RTSP TCP streams
+  * Around 220 GB of data per day
+    * Around 20.4 Mbit/s or 2.6 MB/s
+* Less than 200MB of RAM usage
+  * ~32 MB per recorder
+  * 4 MB for cleaner
+  * 4 MB for web server
+* Uses ~10% of CPU on average over 6 cores
+  * Average of 15% per recorder
+  * Average of 1-5% on cleaner and web server
 
 ## License
 This software, as well as the [Simplette CSS Stylesheet](https://github.com/aziascreations/Simplette-CSS-Stylesheet)