Migrate rules from Apache to Nginx

I have to migrate an Apache configuration file to Nginx but as I have no experience in Nginx I would like some help.

This is my apache setup:

000-default.conf

<VirtualHost *:80>

        ServerAdmin webmaster@localhost
        <Directory /var/www/ff>
                AllowOverride All
                Options -Indexes
        </Directory>

        DocumentRoot /var/www

        RedirectMatch ^/$ /ff/
        Alias "/uploads" "/var/www/ff/uploads/"



        ErrorLog ${APACHE_LOG_DIR}/error.log
        CustomLog ${APACHE_LOG_DIR}/access.log combined


</VirtualHost>

I’m a little lost as using the parameter RedirectMatch in nginx, I guess it has another name help me create a configuration file for nginx?

Regards,