Creating a presentation webapp or software

Okay i am building a presentation software for my church. Here is an example https://www.easyworship.com/
Easy worship is a subscription based application, but this application will only be used at my church.
When we have worship someone can post the songs and verses. Download the free trial to understand it more to understand requirement. Songs and verses will be stored in a database.
Background can be imported.
I prefer a this over the webapp,
- user login and registration
- user roles and privileges
- user managment
- songs management
- verses management
- background management
- presenter screen
- live screen
- presenter notes
To name a few, please review easy-worship free trial before bidding