Module.make "app-side extension/override" parameters (a two-stage responsibility split: domain library author → app developer).
actions
reducers
Optional
Readonly
Module.make "app-side extension/override" parameters (a two-stage responsibility split: domain library author → app developer).
actions: add-only (cannot override existing action schema); used to extend actionMap.reducers: add and override; used to override domain reducers or provide reducers for new actions.