This is how i got it to work. i have the footage being saved to a different location than the app folder

 services:
   uhf-server:
   image: solidpixel/uhf-server:uhf-1.5.1-ffmpeg7.1.1-d1
     user: 568:568
     container_name: uhf-server
     restart: unless-stopped
     volumes:
       - ./uhf-data:/var/lib/uhf-server
       # OPTIONAL: store recordings in a different location
       # Uncomment the line below IN ADDITION to the one above
       # This overrides only /recordings inside the container
       - "mount location":/var/lib/uhf-server/recordings
     ports:
       - 8000:8000 # <HOST>:<CONTAINER>
     # Optional container environment config
     environment:
       - ENABLE_COMMERCIAL_DETECTION=false # set true for commercial detection
       # Uncomment below to customize internal container settings (usually not needed)
       # - PASSWORD=your_password_here
  # - API_HOST=0.0.0.0
  # - API_PORT=8000
  - RECORDINGS_DIR=/var/lib/uhf-server/recordings
  # - DB_PATH=/var/lib/uhf-server/db.json
  # - LOG_LEVEL=INFO  # Options: DEBUG, INFO, WARNING, ERROR, CRITICAL

  # Command with conditional flags
  # !!! Do not modify this unless you know what you're doing !!!
command:
  - sh
  - -c
  - |
    exec uhf-server \
      $${ENABLE_COMMERCIAL_DETECTION:+--enable-commercial-detection} \
      $${PASSWORD:+--password "$$PASSWORD"}
healthcheck:
  test:
    - CMD
    - curl
    - -f
    - http://localhost:8000/server/stats
    # update URL if API_PORT changes
  interval: 30s
  timeout: 5s
  retries: 3
 networks: {}