1. Use "Using Zip Archive" method for manual installation : https://docs.htmly.com/basic/installations
2. PHP REQUIREMENT LINK: https://docs.htmly.com/basic/requirements
3. We have kept password method as "password_hash" because the script changes hash(sha512, $password) to "password_hash" on login.
4. We create "backup" directory because it is required when a user wants to take backup of their site.