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ENGINEERINGJuly 14, 2026 · 6 min read

Your AI cast shouldn't default to Silicon Valley

Most video models default to a Western face when a shot goes unspecified. We mapped roughly 150 countries to regional casting defaults, then hardened it against the exact header bug that once broke our own currency detection.

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ENGINEERING5 min

We taught our export pipeline to say no

An 8-bit AI source doesn't become 10-bit because you wrap it in a ProRes 4444 container. Here's how the delivery pipeline refuses to make that claim, and what it says instead.

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ENGINEERING5 min

What happens when you upload a lying AVIF

A browser 'save image as' file landed on our upload endpoint labeled image/png. It was actually AVIF. It broke every request it touched, and taught us to stop trusting filenames and content-type headers altogether.

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