phpMyAdmin.conf is empty

Question

I used homebrew to install php, mysql and phpMyAdmin

I changed the httpd.conf file as brew asked me with this snippet on top of the file :

Alias /phpmyadmin /opt/homebrew/share/phpmyadmin
    <Directory /opt/homebrew/share/phpmyadmin/>
        Options Indexes FollowSymLinks MultiViews
        AllowOverride All
        <IfModule mod_authz_core.c>
            Require all granted
        </IfModule>
        <IfModule !mod_authz_core.c>
            Order allow,deny
            Allow from all
        </IfModule>
    </Directory>

And then after restarting Apache I went to http://localhost/phpmyadmin/, I have the 403 error : You don't have permission to access this resource.

So I watched on this post and I went on sudo nano /etc/httpd/conf.d/phpMyAdmin.conf.

It appears that this file exists but is empty.

Is it normal ? Does my 403 error comes because this file is empty ?

I'm a frontend developer new to backend, so excuse my lack of knowledge here.

Thank you for your time.