Happy to share. I am not that good of a developer - the stack that I cobbled together is as follows: FrontEnd/Database (Bubble.io, this is a no-code app) + Middleware (my own AWS server with python) + Backend AI engine (nlpcloud.io <- juliensalinas is the founder and he is a user here as well: https://news.ycombinator.com/user?id=juliensalinas)