OutfitMaker.ai
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Building digital products, one at a time
Meridian Build is a solo operation run by Marco. I design, build, and ship software products from first commit to paying customers. Currently focused on AI, SaaS, and tools that solve real problems for real people.
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Read all →I Swapped Fashn for Gemini and Discovered Vertex AI Can't Return Images
Replacing OutfitMaker's virtual try-on engine looked like a service-object swap. It turned into a same-day cascade of five fixes, including discovering the Gemini API I was already using can't return images.
A Duplicate Turbo Frame Bug That Broke Three Features Silently
Two turbo-frame elements with the same id, one HTTP response, three dead features in OutfitMaker. No exception, no Honeybadger hit, no console error. Just a click that did nothing.
A TOCTOU Bug in My Gemini Rate Limiter
A read-then-write pattern in OutfitMaker's rate limiter let concurrent requests bypass the daily Gemini quota. The fix compresses to a single atomic increment, but understanding why takes a minute.
Follow the Journey
I write about what I learn while building these products. Technical deep-dives, honest numbers, and lessons from shipping solo.