First draft for matrix server setup

.env.example

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+DOMAIN=<your-domain.com>
+COTURN_AUTH_SECRET=<secret>

README.md

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 # matrix-server
 
 self-hosted matrix server configuration
+
+## Requirements
+### VPS
+2GB RAM sollte passen, wenn wir ned ins föderierte Multiversum wollen
+- https://www.ionos.de/server/vps
+- https://www.hetzner.com/cloud
+
+### Domain
+Domain = Server-Name = User-Identity  
+Namen später ändern heißt: Chatverläufe und User weg...
+- https://www.namecheap.com/
+
+## Setup
+1. VPS Setup, imo Debian beschde weil light-weight
+2. Docker install
+3. Clone repo
+4. `docker-compose up -d`
+5. fertig? kp

config/Caddyfile

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+matrix.{$DOMAIN} {
+  reverse_proxy conduit:6167
+}
+ 
+element.{$DOMAIN} {
+  reverse_proxy element:80
+}

config/conduit.toml

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+[global]
+server_name = "matrix.${DOMAIN}"
+ 
+database_backend = "rocksdb"
+database_path = "/var/lib/matrix-conduit/"
+ 
+address = "0.0.0.0"
+port = 6167
+ 
+# Turn on only long enough to create your first accounts
+allow_registration = true
+ 
+allow_federation = false
+
+# TURN configuration
+turn_uris = ["turn:${DOMAIN}:3478?transport=udp","turns:${DOMAIN}:5349?transport=tcp"]
+turn_secret = ${COTURN_AUTH_SECRET}

config/element_config.template.json

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+{
+  "default_server_config": {
+    "m.homeserver": {
+      "base_url": "https://matrix.${DOMAIN}",
+      "server_name": "matrix.${DOMAIN}"
+    }
+  },
+  "disable_custom_urls": true,
+  "disable_guests": true,
+  "brand": "My Matrix"
+}

docker-compose.yml

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+version: "3.8"
+
+services:
+  conduit:
+    image: matrixconduit/matrix-conduit:latest
+    container_name: conduit
+    restart: unless-stopped
+    volumes:
+      - conduit_data:/var/lib/matrix-conduit/
+      - ./config/conduit.toml:/etc/conduit.toml:ro
+    environment:
+      DOMAIN: ${DOMAIN}
+      COTURN_AUTH_SECRET: ${COTURN_AUTH_SECRET}
+      CONDUIT_CONFIG: /etc/conduit.toml
+    networks:
+      - matrix
+
+  element:
+    image: vectorim/element-web:latest
+    container_name: element
+    restart: unless-stopped
+    environment:
+      - DOMAIN=${DOMAIN}
+    volumes:
+      - ./config/element_config.template.json:/app/config.template.json:ro
+    command: sh -c "envsubst < /app/config.template.json > /app/config.json && /docker-entrypoint.sh"
+    networks:
+      - matrix
+
+  caddy:
+    image: caddy:latest
+    container_name: caddy
+    restart: unless-stopped
+    environment:
+      - DOMAIN=${DOMAIN}
+    ports:
+      - "80:80"
+      - "443:443"
+    volumes:
+      - ./config/Caddyfile:/etc/caddy/Caddyfile
+      - caddy_data:/data
+      - caddy_config:/config
+    networks:
+      - matrix
+
+  coturn:
+    image: coturn/coturn:latest
+    container_name: coturn
+    restart: unless-stopped
+    environment:
+      - DOMAIN=${DOMAIN}
+      - COTURN_AUTH_SECRET=${COTURN_AUTH_SECRET}
+    command: >
+      -n
+      --log-file=stdout
+      --external-ip=YOUR_SERVER_PUBLIC_IP
+      --realm=$$DOMAIN
+      --use-auth-secret
+      --static-auth-secret=$$COTURN_AUTH_SECRET
+      --no-cli
+      --listening-port=3478
+      --tls-listening-port=5349
+      --fingerprint
+    ports:
+      - "3478:3478"
+      - "3478:3478/udp"
+      - "5349:5349"
+      - "5349:5349/udp"
+      - "49152-49200:49152-49200/udp"
+    networks:
+      - matrix
+
+volumes:
+  conduit_data:
+  caddy_data:
+  caddy_config:
+
+networks:
+  matrix: