odoo 15 from odoo.sh to server

Job ID: 35232888

Budget: $30 – $250 USD

I want to change from odoo.sh to use odoo in my own server.
I need someone to guide me through:
1- configuring,installing odoo 15 and connecting it to a server.
2- show how to modify the codes and upload it to the server.
3- connect domains to the server.