@franciscomoretti

Francisco Moretti

@franciscomorettiLondon, UKJoined June 2022

Full Stack Engineer at Samaya AI. I talk about web development, AI, and good programming practices.

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Full-Stack Engineer specializing in Web Development and AI.

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Francisco Moretti's blogs

Untitled Publicationfranciscomoretti.hashnode.dev55 posts

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FMFrancisco Morettifranciscomoretti.hashnode.devAug 25, 2025 · 2 min read

Fix mobile keyboard overlap with VisualViewport

Edited 2025-08-26: The previous version recommended syncing visualViewport.height to a CSS variable with an observer. That was wrong for this use case. The actual fix in Sparka is to rely on dynamic v

FMFrancisco Morettifranciscomoretti.hashnode.devAug 25, 2025 · 8 min read

Deep Research UIs - Perplexity vs. Manus vs. ChatGPT vs. Gemini

Building chat applications often involves tackling complex user interfaces. This is especially true for "deep research" tasks where information density is high. Components like reports, research steps

FMFrancisco Morettifranciscomoretti.hashnode.devApr 29, 2025 · 8 min read

Deep Research UIs - Perplexity vs. Manus vs. ChatGPT vs. Gemini

Building chat applications often involves tackling complex user interfaces. This is especially true for "deep research" tasks where information density is high. Components like reports, research steps

FMFrancisco Morettifranciscomoretti.hashnode.devApr 4, 2025 · 6 min read

What tests to write for React

This article explores what tests you should be writing for your web applications. Inspired by Igor Luchenkov's insightful talk at React Advanced London and drawing on wisdom from industry experts, we'

FMFrancisco Morettifranciscomoretti.hashnode.devApr 1, 2025 · 6 min read

Next.js Authentication Best Practices in 2025

Note: This article updates previous authentication guide, which contained outdated recommendations. Next.js has since changed its authentication guidance, particularly in light of the CVE-2025-29927 security vulnerability. This articles containes a ...