defaults

This field contains a map that defines default properties for modules and/or apps defined in the same file and its subdirectories.

The map keys are "module" and/or "app". Each value is a module entry whose fields are inherited by all modules (or apps) in the same file and any files included via subdirs. Defaults propagate down through subdirectories and can be overridden at each level.

Any module field can be set in defaults, including context, sources, env, depends, and others.

Example:

defaults:
  module:
    context: my_builder
    env:
      export:
        CFLAGS:
          - -Wall

apps:
  - name: my_app
    # inherits context: my_builder and CFLAGS from defaults
    sources:
      - main.c