Setting up UI middleware

To customize and develop an application, you must set up the UI middleware.

Note: For application build commands, ensure that you install bash-based terminals. For example, git bash.

To set up the UI middleware, complete the following steps:

Download and install Node.Js version 18.20.0. .
In the PATH environment variable, update /path/to/nodejs-18.20.0/bin.
Verify the node version by running the following command:node -v
Install yarn, version 1.22.5 globally by running the following command:
```
npm install --global yarn@1.22.5
```
Verify the yarn version by running the following command:
```
yarn -v
```
Note: On Windows 10 or 11, if you encounter the error, yarn: command not found, set the correct PATH to your system environmental variables. Then, open your terminal and run the following command:npm config get prefix
The command returns the path where npm adds your globally installed packages. For example, C:\Users\Your_User_Name\AppData\Roaming\npm. Copy the path from your terminal and add to your system environment variables. Then, restart the terminal for the changes to take effect.
Install Angular CLI as a global module by running the following command:
```
npm install -g @angular/cli@18.2.12
```
Install Lerna as a global module by running the following command:
```
npm install -g lerna@4.0.0
```
Optional. Customize the package.json to provide specific values for the project metadata and the dependent by customizing the following command:
```
npm init
```
To customize the npm init command, complete the following steps:
1. Determine the value of init-module by running the following command:
```
npm config get init-module
```
  Locate the .npm-init.js file.
2. Open the .npm-init.js file, copy the following code snippet, and save your changes.
```
module.exports = {
name: basename,
version: "0.0.1",
private: true,
scripts: {},
dependencies: {}
}
```
  If you cannot find the .npm-init.js file, create this file, copy the code snippet, and save your changes.
  Note: To verify whether the .npm-init.js file is present, run the following command:
  npm init -y
  The package.json file is generated in the same directory where you ran the command with the default values that are defined in the .npm-init.js file.