# Architecture and general philosophy of the project

## Brief

This project contains different dependency libraries and different packages used by the `@deriv/core` package.

Each package in the `packages` folder is a dependency that eventually reaches up to Core (the main app).

There are 2 types of dependencies:

1. Reusable code/libraries - These are packages that are meant to be loaded anywhere for use, and they enhance the application and/or development. At the time of writing, this includes:

    - `@deriv/components`
    - `@deriv/indicators`
    - `@deriv/publisher`
    - `@deriv/shared`
    - `@deriv/translations`

2. Platforms/Modules/Apps - These can be viewed as applications of their own. According to business logic, these are different domains/sections, and most likely have their own route. At the time of writing, this includes:
    - `@deriv/account`
    - `@deriv/appstore`
    - `@deriv/bot-skeleton`
    - `@deriv/bot-web-ui`
    - `@deriv/cashier`
    - `@deriv/cfd`
    - `@deriv/p2p`
    - `@deriv/trader`

The `@deriv/core` package is the "app instance". It contains singleton services (such as the WS, and base/common stores), as well as singleton UI components (header, footer, modals management, cashier).

_Hint: In order to simply build (without tests) type 1 dependencies, use the command `npm run build:travis` from the root of the package. In order to build type 2 dependencies, in the same manner, use `npm run build:local`._

![Package dependencies](package_dependencies.png?raw=true 'Package dependencies')