Architecture

stackchain:
  architecture: feature_first

Value	Layout
feature_first	data / domain / presentation (default)
clean	same folders, stricter conventions
mvvm	data / models / viewmodels / views
mvc	models / controllers / views (great with GetX)

Every architecture still gets the same app shell:

lib/
├── app/        # App, theme, router
├── core/       # network, storage, DI, session
├── features/
└── main.dart

Not sure? Use feature_first (or the production_bloc preset).

Changing architecture later: dart run stackchain migrate --architecture clean --dry-run