Proof Line
Five pieces of shipped work collapse, one at a time, into the sentence that describes them.
How it moves
Every card on the stage is a demo you already made; one by one each slides away, and on the very next frame a small coloured square is standing exactly where it was. The square travels to its place in a headline and becomes a word, and when the last one lands the sentence is finished and the stage is empty. The whole scene is one scale about one point — fitting scale and centre to the four tracked cards frame by frame put the pivot at (355, 202.3) on a 712×390 stage with a residual under 0.4px, and the headline's own left edge and baseline obey the same number, so nothing here drifts independently of the camera. That camera dips before it pushes: 1.000 → 0.978 over the first two thirds of a second, then out to 1.372, and the dip is the reason the push reads as a push. Nothing cross-fades. Measured, every card is at full opacity on the last frame it exists and gone on the next, and the same is true of square → word: every handover is a hard cut on one frame, because softening any of them turns a substitution into a dissolve.
Installation
$ pnpm dlx shadcn@latest add @snapcn/proof-lineNeeds an existing Remotion project and a components.json. Two-minute setup if this is your first snapcn component.
Frequently asked questions
How do I add Proof Line to a Remotion project?
Proof Line is part of snapcn Pro, and installs with the same shadcn CLI as every free component: npx shadcn@latest add @snapcn/proof-line. The source is copied into your project and is yours to edit — there is no runtime package to keep installed.
What is Proof Line?
Proof Line is a Remotion launch video template for React. Five pieces of shipped work collapse, one at a time, into the sentence that describes them.
Is Proof Line free?
No. It is one of 48 Pro components, sold together: $129 a year for the whole catalogue and everything that ships while your year runs, or $249 once to own it outright. The other 41 snapcn components are free and MIT.