Rich Media Demo — A Build

This is an MDX item, not a prose blog post. It embeds rich media directly via raw HTML — no component import — so this deliverable builds cleanly before the Phase 3 component library’s MediaEmbed exists. That is the whole point: adding a new content format is a no-migration, no-route-change operation.

Because Astro 7 keeps the stricter Rust markdown engine, every raw tag below is well-formed (properly closed / self-closed) — unclosed HTML would now error.

A responsive 16:9 iframe wrapper:

This item’s category: build also seeds the Builds/Work index via selectBuilds.