app/code/Macademy/BasicFundamentals/etc/module.xml

<?xml version="1.0"?>
<!--
The "urn:magento:framework:Module/etc/module.xsd" schema is used to validate the
format of this XML file. You can view and inspect this file at:
vendor/magento/framework/Module/etc/module.xsd
-->
<config
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:noNamespaceSchemaLocation="urn:magento:framework:Module/etc/module.xsd">
    <!--
    The module node's "name" attribute defines the module in Title_Snake syntax,
    and is usually your personal name or company name. In this example,
    "Macademy" is the vendor name and "BasicFundamentals" is the module name.
    -->
   <module name="Macademy_BasicFundamentals"/>
</config>

app/code/Macademy/BasicFundamentals/registration.php

<?php declare(strict_types=1);

// Import the ComponentRegistrar class at the top of the file...
use Magento\Framework\Component\ComponentRegistrar;

// ...then call its register() function to register the module with Magento.
ComponentRegistrar::register(
    ComponentRegistar::MODULE, // Type of module
      'Macademy_BasicFundamentals', // Name of the module in Title_Snake syntax
    __DIR__ // Directory the module is located in (__DIR__ is current directory)
);