Angular web application with Firebase which connects two users to play game on 3rd party gaming app like ludo.

Hey all,
I have an angular appplication with firebase
wtih following UI screens already implemented
1. User login page(mobile login using otp with firebase authentication feature)
2. User profile page
3. add money to wallet page
4. Refer and earn
5. game history
6. transaction history


What I want you to work on is:

1. Adding money to wallet.. a payment feature for upi, paytm, gpay etc apps.
2. This is the feature that needs to be built in detailed both UI and backend flow

2.1 User should be able to create a live game.. which should be visible to all other users as live data
when creating a new game it needs two input : Game amount, room code.
2.2 Live games section ..which shows list of live games created by all other users.
2.3 Live game will have a join button . which will pair the both the persons (the one who create the game and the one who joined it from games list)
2.4 whenever a person create a game of amount X, it should be deducted from his wallet
etc..
And few other UI related aspect . Which I will provide in detail.


Firebase:
1. Show casing live games to all users
2. Transaction history from payment with unique transaction id
3. Game history which shows all the games joined.