Setup Virtual Host For MAC

Enable VirtualHosts and Proxy in Apache config
Edit /private/etc/apache2/httpd.conf in your text editor. Uncomment the following lines (remove the "#")

LoadModule proxy_module libexec/apache2/mod_proxy.so

LoadModule proxy_http_module libexec/apache2/mod_proxy_http.so

Include /private/etc/apache2/extra/httpd-vhosts.conf

Create VirtualHosts for your site
Edit /private/etc/apache2/extra/httpd-vhosts.conf in your text editor. Add the following to the end of the file:

<VirtualHost *:80>
    ServerName site1.localhost
    ProxyPreserveHost on
    ProxyPass / http://localhost:3000/
</VirtualHost>

<VirtualHost *:80>
    ServerName site2.localhost
    ProxyPreserveHost on
    ProxyPass / http://localhost:8080/
</VirtualHost>

You can change localhost to any URL you want. Just don't use .dev because Chrome will force redirect it to HTTPS.

To test if there are no errors in modifying the Apache config, run apachectl -S.

Add your URLs to hosts file
Edit /etc/hosts file.

Add the following lines (use your URLs accordingly)

127.0.0.1       site1.localhost
127.0.0.1       site2.localhost

Restart Apache and flush DNS cache
$ sudo apachectl restart
$ dscacheutil -flushcache