https://anishtejwani.dev/blog Write-ups on the things I build. en Fri, 23 Oct 2026 00:00:00 GMT https://anishtejwani.dev/blog/craft-and-curiosity https://anishtejwani.dev/blog/craft-and-curiosity Fri, 23 Oct 2026 00:00:00 GMT I am artistic, crafty and curious to a fault. Why that shows up in the software I build, and how trying new things keeps changing what I make. https://anishtejwani.dev/blog/playing-sports-too-hard https://anishtejwani.dev/blog/playing-sports-too-hard Fri, 23 Oct 2026 00:00:00 GMT I put a lot of effort into sport and get hurt more often than I should. Notes on effort, recovery and measuring strength, from someone who keeps learning the lesson. https://anishtejwani.dev/blog/recording-a-real-run-for-a-hosted-demo https://anishtejwani.dev/blog/recording-a-real-run-for-a-hosted-demo Thu, 22 Oct 2026 00:00:00 GMT GraphSentinel needs a Python API, a graph database and a frontend. Here is how I turned a real run of it into a static site anyone can click through, and why I labelled it a replay. https://anishtejwani.dev/blog/tea https://anishtejwani.dev/blog/tea Thu, 22 Oct 2026 00:00:00 GMT A short and slightly overdue defence of the drink I get through more of than I should admit. https://anishtejwani.dev/blog/about-me-in-no-particular-order https://anishtejwani.dev/blog/about-me-in-no-particular-order Wed, 21 Oct 2026 00:00:00 GMT Who I am outside the commit history: where I am, what I build, what I do with the rest of my time, and where to find me. https://anishtejwani.dev/blog/welford-online-mean-and-variance https://anishtejwani.dev/blog/welford-online-mean-and-variance Wed, 21 Oct 2026 00:00:00 GMT How to keep a running mean and variance without storing history, why the textbook shortcut fails, and how I use it to flag unusual option flow. https://anishtejwani.dev/blog/rebuilding-this-site https://anishtejwani.dev/blog/rebuilding-this-site Tue, 20 Oct 2026 00:00:00 GMT Why I stripped the portfolio down to one column, and how the blog, case studies and search fit together. https://anishtejwani.dev/blog/chaindeck-max-pain-and-signals https://anishtejwani.dev/blog/chaindeck-max-pain-and-signals Mon, 19 Oct 2026 00:00:00 GMT How a raw NSE option chain becomes Max Pain, gamma exposure, volatility panels and a market regime, and why prefix sums, Welford's algorithm and a boring storage layer do the heavy lifting. https://anishtejwani.dev/blog/unbake-formula-archaeology https://anishtejwani.dev/blog/unbake-formula-archaeology Sun, 18 Oct 2026 00:00:00 GMT What happens when a system exports numbers with the formulas stripped out, and how RANSAC, snapping and a blame solver can work backwards to the formulas and the typos. https://anishtejwani.dev/blog/graphsentinel-bounded-agents https://anishtejwani.dev/blog/graphsentinel-bounded-agents Sat, 17 Oct 2026 00:00:00 GMT Designing an LLM agent for security work that can look at a lot and do almost nothing on its own, with typed tools, deterministic scoring, human approval and an audit trail.