Possibilities on a static ghost blog running on GitHub pages

I created a static ghost blog (rendered using buster ) hosted on GitHub pages, using this tutorial ?

Is it possible to add the in-built or 3rd party comments engine (primarily), a subscriber management system and payment portal page on a ghost blog managed locally on my Mac, but hosted statically on GitHub pages?

Not going to work for sign-ups or built-in comments. Those need to talk to the database, and a static site on GitHub doesn’t do that, right?

You could build in a client-side 3rd party commenting system, and you could add payment links for something like a tip jar, but your ‘dynamic’ parts of your page are all going to have to be client side, so anyone who can open dev tools is going to have access to everything you publish.