To access Studio Raz private packages in Composer, configure authentication for the project:
```
composer config --auth http-basic.repo.packagist.com <username> <password>
```

Set up the custom repository with the following command

composer config repositories.private-packagist composer https://repo.packagist.com/studioraz/
composer config repositories.packagist.org false

Install this module within Magento 2 using composer
```
composer require studioraz/magento2-breadcrumb
```

After this, enable the module as usual

bin/magento mo:e SR_Breadcrumb &&
bin/magento s:up