transfering ownership of a website that i made

I have been learning Django for a while now and was thinking of starting to freelance but i am not sure how i am supposed to transfer the ownership to other person like am i supposed to give them the code or do i first create a domain and then transfer it to the client, can anyone please tell me the process of transferring the ownership of website to client.Sorry if this is a stupid question as i said i have never done this before and i tried to search for a solution on google but i wasn't able to find a proper answer