# Starting from scratch

If you need to control every aspect of an application, you may want to start from scratch. Otherwise, you may be fine by simply using a template.

# Creating the directory structure

First, you need to create the basic directory structure. Use a dedicated root directory and create the following sub-directories:

<app>
  server
    flows
    readModel
    writeModel

Optionally, you may add a server/shared directory to store code that is being used across the various directories:

<app>
  server
    flows
    readModel
    shared
    writeModel

# Creating the configuration

Inside of the application's root directory you need to add a package.json file that contains the configuration. For more details, see configuring an application.

As default, use the following template:

{
  "name": "<app>",
  "version": "<version>",
  "wolkenkit": {
    "application": "<app>",
    "runtime": {
      "version": "1.2.0"
    },
    "environments": {
      "default": {
        "api": {
          "address": {
            "host": "local.wolkenkit.io",
            "port": 3000
          },
          "allowAccessFrom": "*"
        }
      }
    }
  }
}