Source note: Local copy of a Summer Into AI 2026 submission originally published on Substack. Screenshots, video, and audio found in the post body are mirrored locally when publicly accessible; profile and avatar images are intentionally not copied. Read the canonical post.
Week 2 of Summer into AI 2026 hosted by @advisoryhour — theme: Red, White & Boom.

Dependency Day by Myles (@merlinforge) made independence the literal mechanic — you sever supply lines from the Crown until colonies cascade free. Really sharp design thinking. It made me go the other direction entirely: if that's the work of independence, what's the celebration? The moment after the vote passes?
Fireworks Foundry is a browser fireworks canvas set over an American skyline — Washington Monument, Capitol dome, lit windows, a crowd on the shore holding sparklers. Tap anywhere in the night sky to launch shells. Eight burst types, seven color palettes, music that syncs to the beat. The whole thing runs in one HTML file with no server required.


How the AI works
Two live Claude calls drive the creative layer:
Inspire — Claude picks a shell and palette combo and names it — "Sapphire Halo", "Frost Crackle", "Spectrum Storm" — then fires a preview burst immediately so you see it in the sky
Director — type a single sentence describing a vibe and Claude stages a full cinematic show: title card, three narration captions, a palette arc, a music track, and a finale word spelled out in fireworks particles at the climax
Both calls fall back to built-in presets if the API is unreachable — the canvas never breaks on someone trying it cold.
How to play
Pick a shell + palette, tap anywhere in the sky to launch
Hold down for rapid fire
✦ Inspire — Claude picks a combo and fires a preview
♪ Beat — fireworks auto-launch on the music rhythm
🎥 Director — describe a vibe, Claude stages the full show
★ Finale — launches a barrage of every shell type
📸 Poster — saves a PNG of your current sky
Where to play
Demo: fireworks-foundry.vercel.app
Code: github.com/GlimmerForge/summer-into-ai
Summer into AI 2026 · Theme 2: Red, White & Boom · Competitor reference: Dependency Day by @merlinforge
Original source
Canonical Substack URL: https://jakestrait5.substack.com/p/summer-into-ai-2026-fireworks-foundry.