Very neat! Given that an average user doesn't receive many calls a day, it would be cheaper to operate if this could be implemented completely serverless using Cloud Firestore & Cloud Functions.
Can you please stop generalizing mediocre Indian students gaming the system? What evidence do you have to prove your fact? Let me tell you my story just to get some facts straight:
I did my undergrad in Mechanical Engineering from a small city in India. By 3rd year of Engineering, I realized I wasn't cut out to be a good Mechanical Engineer, as I wasn't enjoying CAD/CAM as much as I enjoyed writing C code. I decided it is in my best interests that I turn to programming as a profession, so I worked hard to get selected in campus placements to TCS (Yes, the same shit job which you said is beneath you). I took the job because none of the top tier companies would even look at my resume and this is best shot to work my way up. I spent close to 3 years of my time at TCS learning the basics of Programming, Web Development. Later based on my experience at TCS, I applied to top schools in US and got admitted into a top tier CS school. I took a massive education loan of 50k$ to pursue my MS in CS. Upon completion, after 13 attempts, I landed in a good start up and have ever since been working up the chain building products. I don't think I am an 10X Engineer, but I am regarded as one of the better Engineers in my company. It took a lot of motivation and courage to take such massive loans and pursue my higher education. I know of several people who have done something very similar to what I have done. So, please don't make these biased statements that just disparage the efforts of 1000's of students who come to US in hopes of a better tomorrow.