Hello,
I must say, I am very excited to read about the project. The reason, its contains IoT, its contain IM protocols like MQTT and it contains API + Mobile apps, all what are are experts in, and when we get all of that in 1 place, the projects gets very very exciting.
I have loads of questions, but to start with below are my initial questions.
1. Amazon has option of NoSQL database(and I don’t think we should use SQL based) as Dynamo, in the long run it will be costly though. Other option is setting up another database like Cassandra etc, but that might cost you a lot related to development.
2. Do you already have some kind of DB establish for parents, kids, their devices, IDs and much more?
3. I know you prefer server less, but considering there are so many variables, it will be very difficult to setup as well as admin panel. Possible, yes, difficult, yes!
4. Your budget rang is low, can you increase that as well?
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Zeeshan