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Nina Alvarez avatar: Pip, the Ext Watch mascot

Nina Alvarez

Building, tools and AI

Nina writes for builders: developer accounts, the dashboard, publish APIs, data tools and connecting AI assistants to store data over MCP. Her voice is friendly and concrete, with short code-free explanations of how the pieces fit.

How Nina works: Follows the official Chrome and MCP docs step by step, notes the date she checked them, and flags anything that changed recently. See our methodology.

Part of the Ext Watch desk: a pen name for one consistent voice and beat. Every guide is written from Ext Watch's own Chrome Web Store data and checked against the sources it links.

20 guides by Nina Alvarez

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12 niches with an opening right now. Build what people already want.

Start from a niche with proven demand instead of a blank page. Updated 3 Oct 2026 from our Chrome Web Store crawl

Ask Claude about this dataPlans from $19/mo

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