Rodrigo Guzman

@RoyGF

Software developer specialized in Mobile Technologies

MexicoJoined November 2023

About

Senior Mobile Developer. Writing about Flutter.

Available for

I am available for mentoring and to be hired for some Freelance Projects.

Rodrigo Guzman's blogs

Roy Developerroydeveloper.com3 posts

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Recently published

RGRodrigo Guzmanroydeveloper.comFeb 10 · 6 min read

A small introduction to Flutter Performance

When we discuss performance in mobile applications, we think of it as an advanced topic, only reserved to the final stage of the development of an app or for an extreme case when we need to optimize it, but in real life, performance is one of the ver...

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RGRodrigo Guzmanroydeveloper.comNov 27, 2025 · 6 min read

How to Integrate Generative AI in Flutter Using a NestJS Backend with Gemini

Many tutorials show how to “use AI in Flutter” by calling an API directly from the app. That approach works for prototypes, but in real production environments, it brings several problems: exposed API keys, no rate limiting, no control over costs, an...

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RGRodrigo Guzmanroydeveloper.comMay 9, 2024 · 6 min read

Why you should avoid using Method Helpers in Flutter and use Widget classes instead.

Why should you avoid using Method Helpers in Flutter and use Widget classes instead? Everything is a widget in Flutter, and we use widgets for everything from very easy components to very complex UI screens. However, developers commonly use method he...

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Rodrigo Guzman

About

Available for

Rodrigo Guzman's blogs

Recently published

A small introduction to Flutter Performance

How to Integrate Generative AI in Flutter Using a NestJS Backend with Gemini

Why you should avoid using Method Helpers in Flutter and use Widget classes instead.

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Rodrigo Guzman

About

Available for

Rodrigo Guzman's blogs

Recently published

A small introduction to Flutter Performance

How to Integrate Generative AI in Flutter Using a NestJS Backend with Gemini

Why you should avoid using Method Helpers in Flutter and use Widget classes instead.