I am developing a site , where I am using NextJs for frontend and node for backend. I want to integrate bettermode into my site. I want to be able to get the posts that has been created by admin and only the user which is logged in on my site can react on that post. I want to know how to integrate bettermode in my site using either logging in google or oauth2 or jwt sso. If anybody of you have codebase I would like to see that.