Compose block · branded code panel for verbatim copy-paste content

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For docker-compose YAML, bash recipes, JSON examples, anything the reader might want to copy. Optional filename pill at the top, a copy-to-clipboard button on hover.

docker-compose.yml 
services:
  nextcloud:
    image: nextcloud:latest
    restart: unless-stopped
    ports:
      - "8080:80"
    environment:
      # Postgres connection details
      POSTGRES_HOST: db
      POSTGRES_USER: nextcloud
bash 
# one-time setup
docker compose up -d

# tail the logs
docker compose logs -f nextcloud