Tools & Insights for Building
with AI

Practical guides, open-source utilities, and experiments in AI & software engineering - created and tested by me, Stephen Collins.

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thumbnail image for I Built a CLI to Find the Riskiest Code in Any Repo — Introducing Hotspots

I Built a CLI to Find the Riskiest Code in Any Repo — Introducing Hotspots

Stephen Collins • Mar 1, 2026
5 mins
Every codebase has a small cluster of files that cause most of the pain—slow reviews, recurring bugs, incident after incident...
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How to Use Distributed SQLite and Merkle Trees to Detect Divergence

Stephen Collins • Sep 29, 2025
4 mins
Learn how to simulate multiple SQLite databases as independent peers and use Merkle trees as immutable fingerprints to detect...
Read More thumbnail image for Merkle Trees in SQLite with Python: A Practical Tutorial

Merkle Trees in SQLite with Python: A Practical Tutorial

Stephen Collins • Sep 22, 2025
5 mins
Merkle trees power Git, Bitcoin, and distributed systems, but they're often taught as abstract concepts. This tutorial shows ...
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