Website migration from staging to public server

I have self-hosted Odoo 17 in my office I call it my staging site to learn Odoo. I created a website on the staging server and I am happy with it. The AI wizard was actually great way to get me going. Now I want to move that to a public web server where I installed Odoo 18. Now, I cannot find documentation on how to "package" the website from the staging server and "import" into the production server. I cannot even find a way to backup the site just for recovery. What did I miss ?