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Developer Portfolio and Photography Lab

Developer Portfolio + Product Lab

I design and ship production-ready web products.

This site is where I test ideas through real-world creative projects and turn them into practical engineering patterns.

Product EngineeringPlatform ModernizationApplied AI + Rapid Prototyping
Let's build something togetherSee how I add value

Latest post

Forking Giscus: Actor Gotcha

A GraphQL query that worked fine locally took production down over one extra field. Here's the Actor-vs-User schema mismatch behind it, and the inline-fragment fix that actually held.

Jul 05, 2026

Flagship build

Interactive world photo map

A real dataset playground with geospatial search, clustering, and iterative UX tuning.

Why Work With Me

I deliver end-to-end product improvements across engineering, platform modernization, and applied AI + rapid prototyping.

Proof snapshot is highlighted below.

By the numbers

Latest site release: v4.8.2 (Jul 1, 2026)

Numbers that reflect shipped work, active experimentation, and continuous learning.

12

Client organizations

133

Site releases

4

Active lab projects

10

Published posts

224

Published photos

Loaded 36 of 224

Designed and developed by Marc Santos.
This website is a work in progress made with .
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