Add matrix, cloud, gitea

matrix/.env.example

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+MATRIX_DB=matrix
+MATRIX_DB_USER=user
+MATRIX_DB_PASSWORD=password

matrix/create_config.sh

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+docker run -it --rm \
+    -v "$(pwd)/synapse_data:/data" \
+    -e SYNAPSE_SERVER_NAME=example.com \
+    -e SYNAPSE_REPORT_STATS=yes \
+    matrixdotorg/synapse:latest generate

matrix/create_user.sh

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+docker exec -it matrix-synapse-1 register_new_matrix_user \
+    -c /data/homeserver.yaml http://localhost:8008

matrix/docker-compose.yml

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+services:
+  matrix-synapse:
+    image: docker.io/matrixdotorg/synapse:latest
+    container_name: matrix-synapse
+    restart: unless-stopped
+    volumes:
+      - ./data:/data
+    environment:
+      - SYNAPSE_CONFIG_PATH=/data/homeserver.yaml
+    depends_on:
+      - matrix-db
+    networks:
+      - matrix_network
+
+  matrix-db:
+    image: docker.io/postgres:14-alpine
+    container_name: matrix-db
+    restart: unless-stopped
+    environment:
+      - POSTGRES_USER=${MATRIX_DB_USER:?}
+      - POSTGRES_PASSWORD=${MATRIX_DB_PASSWORD:?}
+      - POSTGRES_DB=${MATRIX_DB:?}
+      - POSTGRES_INITDB_ARGS=--encoding=UTF-8 --lc-collate=C --lc-ctype=C
+    volumes:
+      - ./db:/var/lib/postgresql/data
+    networks:
+      - matrix_network
+
+  matrix-element:
+    image: vectorim/element-web:latest
+    container_name: matrix-element
+    restart: unless-stopped
+    networks:
+      - matrix_network
+
+networks:
+  matrix_network:
+    driver: bridge