---
title: "Ayan Khan (@thunderkhan) | Hashnode"
description: "Building systems, breaking abstractions, and writing about what I learn. Read the latest articles by Ayan Khan on Hashnode."
url: "https://hashnode.com/@thunderkhan"
---

@thunderkhan

# Ayan Khan

@thunderkhan · Gorakhpur, India · Joined August 2026

Building systems, breaking abstractions, and writing about what I learn.

### [I Built C++ Test Impact Analysis With Zero Runtime Dependencies](https://thunder-khan.hashnode.dev/i-built-cpp-test-impact-analysis-with-zero-runtime-dependencies?utm_source=hashnode&utm_medium=feed)

How I built diff2test, a zero-dependency C++ test impact analysis tool that maps code changes to affected tests using build metadata.

16 min read · [thunder-khan.hashnode.dev](https://thunder-khan.hashnode.dev/i-built-cpp-test-impact-analysis-with-zero-runtime-dependencies?utm_source=hashnode&utm_medium=feed)

[Aug 30](https://hashnode.com/posts/i-built-cpp-test-impact-analysis-with-zero-runtime-dependencies/6a94085893652adbf12cf922)