.
├── core                       # for all common and core files.
│   ├── error                  # contains all exceptions and failures classes
│   ├── presentation           # common presentation files
|   │   └── blocs              # common blocs
|   │   └── pages              # core pages
|   │   └── widgets            # common widgets
│   └── route                  # routes for navigation
│   └── theme                  # theme data
│   └── usecases               # common usecases
|
├── feature                    # all features
    ├── feature1               # feature 1 (for exp : todo feature)
        ├── data               # data files of feature 1
        ├   └── datasources    # datasources abstract files and implementations
        ├   └── models         # models for data
        ├   └── repositories   # repositories implementation classes
        └── domain             # domain
        ├   └── entities       # entities for feature 1
        ├   └── usecases       # usecases of feature 1
        ├   └── repositories   #   repositories abstract classes
        ├── presentation       # feature 1 presentation files
        │   └── blocs          # feature 1 blocs
        │   └── pages          # feature 1 pages
        │   └── widgets        # feature 1 widgets

.
├── master                       # contains the latest release
       ├── dev                   # contains the latest development
            ├── feature1         # feature 1 created from dev
            ├── feature2         # feature 2 created from dev
            ├── feature3         # feature 3 created from dev
            ├── bugfix1          # bugfix 1 created from dev
            ├── bugfix2          # bugfix 1 created from dev
            ├── docchange1       # docchange 1 created from dev
            ├── docchange1       # docchange 2 created from dev