Outside astronomy, I like building things people can use the same week. Language models make it possible for one or two people to ship a product that would have needed a whole team a few years ago, and these are the two I have been building.
PorAI, which I co-founded, is built around a simple idea: every learner deserves the kind of attention a good personal tutor gives. It started as a small question generator for SSC physics and grew into a learning platform for Bangladeshi students. It generates practice problems, worked answers and revision notes from the national (NCTB) curriculum, retrieving from the textbooks themselves so that what it produces matches what students are actually examined on, and gives teachers and parents a clearer picture of where a student is stuck. Having spent years mentoring olympiad students, I see PorAI as the same work at a larger scale.
PocketMoney is a money assistant you just text. Two roommates, a couple or a small team each talk to it privately. It splits and settles shared costs like rent, trips and groceries, and gives each person advice grounded in their own accounts, without ever showing one person's finances to the other. It runs on the web and as an iOS app that share one account and one chat history. It grew out of Pocket, a personal-finance app in Bengali that I built first, and is now onboarding its first users by hand.
For the AI work that is part of my research, see AI in Astronomy.