diff --git a/.DS_Store b/.DS_Store
new file mode 100644
index 0000000..0ffcf3a
Binary files /dev/null and b/.DS_Store differ
diff --git a/.gitignore b/.gitignore
index 7422ee6..8b3d99c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -81,3 +81,7 @@ backrest/backup/
 backrest/repos/
 semaphore/semaphore_config/config.json
 semaphore/semaphore_data/database.boltdb
+mosquitto/data/
+mosquitto/log/
+mosquitto/config/
+postgres17/postgres/
diff --git a/gatus/compose.yml b/gatus/compose.yml
new file mode 100644
index 0000000..2c824a4
--- /dev/null
+++ b/gatus/compose.yml
@@ -0,0 +1,21 @@
+# https://github.com/TwiN/gatus/blob/master/.examples/docker-compose/docker-compose.yml
+
+# 
+
+name: gatus
+
+services:
+  gatus:
+    image: twinproduction/gatus:latest
+    container_name: gatus
+    ports:
+      - 8080:8080
+    volumes:
+      - ./config:/config
+    networks:
+      - proxy
+
+networks:
+  proxy:
+    external: true
+  
\ No newline at end of file
diff --git a/gatus/config/config.yaml b/gatus/config/config.yaml
new file mode 100644
index 0000000..82d2afb
--- /dev/null
+++ b/gatus/config/config.yaml
@@ -0,0 +1,40 @@
+
+
+ui:
+  default-sort-by: group
+
+connectivity:
+  checker:
+    target: 1.1.1.1:53
+    interval: 60s
+
+endpoints:
+  - name: website # Name of your endpoint, can be anything
+    group: Test
+    url: "https://twin.sh/health"
+    interval: 5m # Duration to wait between every status check (default: 60s)
+    conditions:
+      - "[STATUS] == 200" # Status must be 200
+      - "[BODY].status == UP" # The json path "$.status" must be equal to UP
+      - "[RESPONSE_TIME] < 300" # Response time must be under 300ms
+    alerts:
+      - type: telegram
+
+  - name: make-sure-header-is-rendered
+    group: Test
+    url: "https://example.org/"
+    interval: 60s
+    conditions:
+      - "[STATUS] == 200" # Status must be 200
+      - "[BODY] == pat(*<h1>Example Domain</h1>*)" # Body must contain the specified header
+    alerts:
+      - type: telegram
+
+  - name: Guacamole
+    group: Local
+    url: "http://host.docker.internal:80"
+    conditions:
+      - "[STATUS] == 200"
+    alerts:
+      - type: telegram
+
diff --git a/mariadb/.DS_Store b/mariadb/.DS_Store
new file mode 100644
index 0000000..4c5c7e8
Binary files /dev/null and b/mariadb/.DS_Store differ
diff --git a/mariadb/compose.yml b/mariadb/compose.yml
index 5721520..1b5e58d 100644
--- a/mariadb/compose.yml
+++ b/mariadb/compose.yml
@@ -9,11 +9,9 @@ services:
     container_name: mariadb
     restart: always
     ports:
-      - 3306:3306
+      - 127.0.0.1:3306:3306
     environment:
-      MARIADB_ROOT_PASSWORD: example
-      MARIADB_USER: example-user
-      MARIADB_PASSWORD: my_cool_secret
+      MARIADB_ROOT_PASSWORD: administrator
     volumes:
       - ./mysql:/var/lib/mysql
 
@@ -60,14 +58,14 @@ services:
       LABEL_con1: MariaDB
       SERVER_con1: mariadb
       USER_con1: root
-      PASSWORD_con1: example
+      PASSWORD_con1: administrator
       PORT_con1: 3306
       ENGINE_con1: mysql@dbgate-plugin-mysql
 
   nocodb:
     container_name: nocodb
     # environment:
-    #   NC_DB: "mysql://mariadb:3306?u=root&p=example"
+    #   NC_DB: "mysql://mariadb:3306?u=root&p=administrator"
     image: "nocodb/nocodb:latest"
     ports:
       - "8070:8080"
diff --git a/meshdash/compose.yml b/meshdash/compose.yml
new file mode 100644
index 0000000..50a2414
--- /dev/null
+++ b/meshdash/compose.yml
@@ -0,0 +1,16 @@
+services:
+  meshdash:
+    image: rusjpmd/meshdash-runner:latest
+    container_name: meshdash
+    restart: always
+    network_mode: host
+    privileged: true
+    environment:
+      MD_SETUP_KEY: "YOUR_API_KEY_HERE"
+      MD_SETUP_URL: "https://meshdash.co.uk/user_setup_core.php"
+    volumes:
+      - /dev:/dev
+      - meshdash_data:/app/data
+
+volumes:
+  meshdash_data:
diff --git a/moodle/.env b/moodle/.env
new file mode 100644
index 0000000..cfb2ae4
--- /dev/null
+++ b/moodle/.env
@@ -0,0 +1,12 @@
+# Moodle application admin credentials
+MOODLE_USERNAME=admin
+MOODLE_PASSWORD=change_me_admin_password
+MOODLE_EMAIL=admin@example.com
+
+# Database connection details
+MOODLE_DATABASE_USER=moodle
+MOODLE_DATABASE_PASSWORD=change_me_database_password
+MOODLE_DATABASE_NAME=moodle
+
+# MariaDB root credentials
+MARIADB_ROOT_PASSWORD=change_me_root_password
diff --git a/mosquitto/compose.yml b/mosquitto/compose.yml
new file mode 100644
index 0000000..21d10f7
--- /dev/null
+++ b/mosquitto/compose.yml
@@ -0,0 +1,11 @@
+services:
+  mosquitto:
+    image: eclipse-mosquitto:2
+    container_name: mosquitto
+    restart: unless-stopped
+    ports:
+      - "1883:1883"
+    volumes:
+      - ./config/mosquitto.conf:/mosquitto/config/mosquitto.conf:ro
+      - ./data:/mosquitto/data
+      - ./log:/mosquitto/log
diff --git a/postgres17/compose.yml b/postgres17/compose.yml
new file mode 100644
index 0000000..173cc89
--- /dev/null
+++ b/postgres17/compose.yml
@@ -0,0 +1,31 @@
+name: postgres
+
+services:
+  postgres:
+    container_name: postgres
+    image: postgres:17.6
+    restart: unless-stopped
+    ports:
+      - 5432:5432
+    environment:
+      POSTGRES_PASSWORD: postgres
+      POSTGRES_USER: postgres
+    volumes:
+      - ./postgres:/var/lib/postgresql/data
+
+  pgadmin:
+    container_name: pgadmin
+    image: dpage/pgadmin4:2025-09-02-1
+    environment:
+      PGADMIN_DEFAULT_EMAIL: admin@pgadmin.com
+      PGADMIN_DEFAULT_PASSWORD: password
+      PGADMIN_LISTEN_PORT: 80
+    ports:
+      - 15433:80
+    volumes:
+      - pgadmin:/var/lib/pgadmin
+    depends_on:
+      - postgres
+
+volumes:
+  pgadmin:
diff --git a/webstack-task/TASK.md b/webstack-task/TASK.md
new file mode 100644
index 0000000..60412fa
--- /dev/null
+++ b/webstack-task/TASK.md
@@ -0,0 +1,13 @@
+Es soll ein Webstack lokal mit Docker aufgesetzt werden.
+
+1. [nginx](https://hub.docker.com/_/nginx)
+2. [PHP](https://hub.docker.com/_/php)
+3. [sftp](https://hub.docker.com/r/atmoz/sftp)
+
+sftp um die Dateien zu übertragen und verwalten. nginx und PHP als Webserver.
+Hoste eine einfache Testanwendung auf dem Server.
+Verwende Docker Compose.
+
+Die Lehrperson soll mit deiner IP-Adresse darauf zugreifen können.
+
+Dokumentiere die Schritte hier kurz, und lade sie hoch.  
diff --git a/webstack-task/app/index.html b/webstack-task/app/index.html
new file mode 100644
index 0000000..6cbc977
--- /dev/null
+++ b/webstack-task/app/index.html
@@ -0,0 +1,13 @@
+<!doctype html>
+<html lang="de">
+  <head>
+    <meta charset="utf-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1" />
+    <title>Webstack Task</title>
+  </head>
+  <body>
+    <h1>Webstack Task</h1>
+    <p>Wenn du das siehst, liefert Nginx aus.</p>
+    <p><a href="/index.php">PHP-Test öffnen</a></p>
+  </body>
+</html>
diff --git a/webstack-task/app/index.php b/webstack-task/app/index.php
new file mode 100644
index 0000000..5ccab94
--- /dev/null
+++ b/webstack-task/app/index.php
@@ -0,0 +1,9 @@
+<?php
+
+declare(strict_types=1);
+
+header('Content-Type: text/plain; charset=utf-8');
+
+echo "Webstack läuft.\n";
+echo "Zeit (Server): " . date('c') . "\n";
+echo "PHP-Version: " . PHP_VERSION . "\n";
diff --git a/webstack-task/compose.yml b/webstack-task/compose.yml
new file mode 100644
index 0000000..ef8ee6d
--- /dev/null
+++ b/webstack-task/compose.yml
@@ -0,0 +1,39 @@
+services:
+  nginx:
+    image: nginx:1.27-alpine
+    container_name: webstack-nginx
+    depends_on:
+      - php
+    ports:
+      - "${WEBSTACK_HTTP_PORT:-8080}:80"
+    volumes:
+      - ./app:/var/www/html:ro
+      - ./nginx/default.conf:/etc/nginx/conf.d/default.conf:ro
+    networks:
+      - webstack
+    restart: unless-stopped
+
+  php:
+    image: php:8.3-fpm-alpine
+    container_name: webstack-php
+    volumes:
+      - ./app:/var/www/html:ro
+    networks:
+      - webstack
+    restart: unless-stopped
+
+  sftp:
+    image: atmoz/sftp:alpine
+    container_name: webstack-sftp
+    platform: linux/amd64
+    ports:
+      - "${WEBSTACK_SFTP_PORT:-2222}:22"
+    volumes:
+      - ./app:/home/webuser/upload
+    command: "webuser:webpass:1000:1000:upload"
+    networks:
+      - webstack
+    restart: unless-stopped
+
+networks:
+  webstack: {}
diff --git a/webstack-task/nginx/default.conf b/webstack-task/nginx/default.conf
new file mode 100644
index 0000000..d1813f0
--- /dev/null
+++ b/webstack-task/nginx/default.conf
@@ -0,0 +1,22 @@
+server {
+    listen 80;
+    server_name _;
+
+    root /var/www/html;
+    index index.php index.html;
+
+    location / {
+        try_files $uri $uri/ /index.php?$query_string;
+    }
+
+    location ~ \.php$ {
+        include fastcgi_params;
+        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
+        fastcgi_param DOCUMENT_ROOT $document_root;
+        fastcgi_pass php:9000;
+    }
+
+    location ~ /\.ht {
+        deny all;
+    }
+}
diff --git a/windows/compose.yml b/windows/compose.yml
new file mode 100644
index 0000000..afecbee
--- /dev/null
+++ b/windows/compose.yml
@@ -0,0 +1,30 @@
+# 
+
+# https://github.com/dockur/windows
+
+name: windows
+
+services:
+  windows:
+    image: dockurr/windows
+    container_name: windows
+    environment:
+      VERSION: "11"
+      RAM_SIZE: "8G"
+      CPU_CORES: "4"
+      KVM: "N"
+    # devices:
+    #   - /dev/kvm
+    #   - /dev/net/tun
+    cap_add:
+      - NET_ADMIN
+    ports:
+      - 8006:8006
+      - 3389:3389/tcp
+      - 3389:3389/udp
+    volumes:
+      - ./windows:/storage
+    restart: always
+    stop_grace_period: 2m
+      
+  
\ No newline at end of file