When you make public folder accessible, that means other sensitive information ( like Storage folder ) is accessible through web.
The other folders should not be accessible in the system,
If you're on a cPanel :
setup a subdomain for the software and when asked to choose the folder, choose it to be /public folder
If you're on a VPS
change DocumentRoot to /public folder. Similar to this:
DocumentRoot /var/www/html/firehelp/public ServerName support.firecrown.io