Hello I want to build an informational app for lovers of history.
So everyday I will post an important event that happened that day with some text and pics, every time I post in the app I’m hoping everyone will get a notification on their phone.
I’m also hoping people can go into the app and see previous posts, it will have the look and feel of a Facebook like page.
Would this be hard to create?
@infozf7e 
Welcome To Our Community
No, it is not hard, very easy. But you are new here may be hard for you. Because first you have to understand what is the use of the components.
Hey, @infozf7e Welcome to the community 
I think for a beginner it will be a tough job. But if you have experience of using Firebase and Onesignal APIs then it will be not that hard. I would suggest to see some tutorials on Firebase and Onesignal.