AI systems, Toronto data tools, GEO experiments, and VR research.
I'm Joshua Opolko, a builder and writer in Toronto. I run live experiments and publish the receipts.
Microsoft Won't Prove Its Copilot Warning, It Just Wants to Sell You Purview
Microsoft's own prompt injection advisories read like breaking news. Check the dates and the fix usually shipped weeks or months before the warning did. The product it points you to next, Purview, mentions prompt injection once, as detection, not prevention. Of course a public company patches first and sells the anxiety second.
Read the analysis →What Gemini Nano Is Doing on Your PC/Phone
The push to slip Gemini Nano onto consumer devices without asking is a desperate architectural workaround to salvage market dominance. Google solves three problems at once: offloading cloud inference costs to your GPU, bypassing GDPR via on-device context, and locking the browser as the primary AI chokepoint so the ad-revenue model survives.
Read the analysis →Local Tools
Live Toronto datasets I build and run, each rebuilt daily from official sources.
NowServingTO
Daily-fresh directory of newly licensed Toronto restaurants, classified by cuisine.
Kids Events Toronto
Curated daily directory of distinctive Toronto kids and family events, museums, nature, festivals and more.
HomeTurf
Toronto neighbourhood income-stability data for families choosing where to put down roots.
AI & GEO
Case studies and field notes on getting cited by AI, written from systems I actually operate.
Optimizing for AI Citation
GEO replaces click optimization with citation optimization, what that means in practice.
Site as AI Infrastructure
How to become a trusted source for ChatGPT and Claude, with real bot traffic data.
LLM-as-ETL Architecture
Building a data pipeline around Claude instead of bolting it on.
Claude Code Spec Workflow
A spec-driven MCP workflow for turning requirements into clean, tested code.