Designing the Keepsake Film

A thinking day, on purpose: the post-launch differentiator — photo galleries cut to music — gets its full shape.

Every event app ends at "here are your photos." Nobody else ends at "here is your film." This is the differentiator — and the design makes the hard part (taste) the part that compounds in our favor with every correction I make.

The goalNo code today — a thinking session, on purpose. The biggest post-launch idea (photo galleries that become a film, cut to music) got a full design treatment while the most capable AI model was still on the plan: what exactly are we building, what's genuinely hard about it, and what's the moat.

• The feature has a shape now. After a released gallery, the host can buy a ~60-second keepsake film: the event's photos sequenced into a story and cut so every edit lands on the music's beat — the craft I spent years doing by hand for wedding films, encoded as software. Photos stay photos (with designed camera moves, not AI animation), the system picks and orders them itself, and the host approves before anything ships.
• The plan is a "lab" first. Before touching the product, we build a private workbench on my Mac that turns a folder of photos plus a song into a finished film in seconds — iterated against the seventeen fake event photo rolls from the marketing shoot until the cuts pass my editor eye.
• The teach loop is the clever bit. Instead of building an editing interface, the lab exports its cut as a real Final Cut Pro project. I correct it the way I'd correct a junior editor's work, and the system diffs my version against its own and learns my taste from the corrections. Those accumulated corrections become the one asset a competitor can't copy.
• Music, done legally. Vetted my music library's license (covered for prototyping; the paid feature needs one confirmation email before launch), designed the catalog so every track carries its license paperwork, and killed the "upload your own song" idea permanently — that road leads straight to other people's copyrights.
• The whole design is written up and committed as a spec, with a roadmap from lab → track catalog → in-product feature → paid upsell.