Always standardize configuration values to ensure consistency, reproducibility, and maintainability:

  1. Pin specific versions instead of using floating tags for dependencies to ensure consistent behavior across environments. ```diff
  2. Centralize repeated values as environment variables or constants to avoid duplication and simplify updates. ```diff
  3. Use official defaults when configuring services, then provide clear documentation for any custom values and ensure they can be overridden when needed.
    # Use environment variables with descriptive comments
    CLICKHOUSE_MAX_MEMORY_USAGE: "${CLICKHOUSE_MEM:-800000000}"  # Default ~800MB, override with CLICKHOUSE_MEM
    

This approach reduces maintenance burden, makes configuration changes safer and more deliberate, and provides better visibility into how systems are configured.