https://aadityatamrakar.in/blog/ Writing on algorithmic trading tools, machine learning, web development and open source SDKs by Aaditya Tamrakar. en Mon, 12 Oct 2026 09:00:00 +0000 aaditya.span@gmail.com (Aaditya Tamrakar) aaditya.span@gmail.com (Aaditya Tamrakar) https://aadityatamrakar.in/blog/nse-option-chain-analysis/ https://aadityatamrakar.in/blog/nse-option-chain-analysis/ Mon, 12 Oct 2026 09:00:00 +0000 How I built a Node.js app that pulls the live NSE Nifty option chain, classifies every strike by price and OI change, and renders sentiment on one page. Trading https://aadityatamrakar.in/blog/reading-open-interest-buildups/ https://aadityatamrakar.in/blog/reading-open-interest-buildups/ Sun, 11 Oct 2026 09:00:00 +0000 A practical guide to reading open interest with price change: long buildup, short buildup, short covering and long liquidation, and what each implies. Trading · How-to https://aadityatamrakar.in/blog/cash-futures-spread-chart/ https://aadityatamrakar.in/blog/cash-futures-spread-chart/ Sat, 10 Oct 2026 09:00:00 +0000 Building a small Node and Express tool that computes and charts the daily spread between the cash price and the futures price of NSE stocks. Trading https://aadityatamrakar.in/blog/broker-sdks-open-source/ https://aadityatamrakar.in/blog/broker-sdks-open-source/ Fri, 09 Oct 2026 09:00:00 +0000 The broker SDKs and bots I forked, adapted and use in my own tooling: Kite Connect in Go, XTS and 5paisa in Node, Hummingbot in Python, option pricing. Open Source https://aadityatamrakar.in/blog/captcha-solver-scikit-learn/ https://aadityatamrakar.in/blog/captcha-solver-scikit-learn/ Thu, 08 Oct 2026 09:00:00 +0000 A captcha solving pipeline in Python: trim, split letters, rotate, resize to pixels and classify with a scikit-learn model, served through a PHP API. ML https://aadityatamrakar.in/blog/fantasy-cricket-team-optimiser/ https://aadityatamrakar.in/blog/fantasy-cricket-team-optimiser/ Wed, 07 Oct 2026 09:00:00 +0000 Treating fantasy cricket team selection as a constraint problem: top 18 players by pick rate, enumerate every valid 11, then pick by points from JSON data. ML · Data https://aadityatamrakar.in/blog/offline-first-notes-pwa/ https://aadityatamrakar.in/blog/offline-first-notes-pwa/ Tue, 06 Oct 2026 09:00:00 +0000 Step by step: an installable, offline-first notes app using localStorage for data, a service worker for caching and a web manifest for Android install. Web · How-to https://aadityatamrakar.in/blog/realtime-distress-alarm-socketio/ https://aadityatamrakar.in/blog/realtime-distress-alarm-socketio/ Mon, 05 Oct 2026 09:00:00 +0000 How a panic alarm system streams live browser video to everyone in a Socket.io room: capturing frames, naming rooms and fanning out events in Node.js. Web · How-to https://aadityatamrakar.in/blog/shipping-food-delivery-solo/ https://aadityatamrakar.in/blog/shipping-food-delivery-solo/ Sun, 04 Oct 2026 09:00:00 +0000 What it took to ship a food delivery product alone: a Laravel and MySQL backend with admin and SMS, a Bootstrap 3 web frontend and an Ionic mobile app. Web · Lessons https://aadityatamrakar.in/blog/dealership-reporting-laravel-cron/ https://aadityatamrakar.in/blog/dealership-reporting-laravel-cron/ Sat, 03 Oct 2026 09:00:00 +0000 Lessons from building Laravel reporting engines for a car dealership and other small businesses: cron schedulers, emailed reports and AdminLTE dashboards. Web · Lessons https://aadityatamrakar.in/blog/options-ui-for-beginners-cs615/ https://aadityatamrakar.in/blog/options-ui-for-beginners-cs615/ Fri, 02 Oct 2026 09:00:00 +0000 Designing an options trading interface for beginners as a CS615 UI design project at UMass Boston: goals, prototype on GitHub Pages and what I learned. Academic · Design https://aadityatamrakar.in/blog/ten-years-of-public-code/ https://aadityatamrakar.in/blog/ten-years-of-public-code/ Thu, 01 Oct 2026 09:00:00 +0000 A look back at ten years of public repositories, from a CSS video player in 2016 to trading SDKs in 2026, and how my tools and habits changed along the way. Career