How program can be copied in MIT app during creating app

// Get the TinyDB component

// Get the values from the input fields
var username = txtUsername.Text;
var password = txtPassword.Text;
var email = txtEmail.Text;

// Store the values in TinyDB with their respective tags
TinyDB1.StoreValue("username", username);
TinyDB1.StoreValue("password", password);
TinyDB1.StoreValue("email", email);

// Display a confirmation message to the user
Notifier1.ShowMessageDialog("Sign up successful!", "");

Why not show your blocks?

What is your question ? - your topic title does not really indicate what you want to do with the text you have provided....

What does this have to do with firebase (which you tagged)?