Building 19 per-topic OG images with Japanese fonts at build time using Next.js

Next.js build-time generation creates 19 variations of OG images with Japanese font support.

Published 15sem1 source

≈ 19sSpeed

The fact

Pre-rendering at build time eliminates runtime image generation, speeding up social media sharing.

Scales to hundreds of variations without server-side rendering overhead.

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Auto-synthesis from 1 media source · identified on April 28, 2026