
I've been recently experimenting with a new way to run e2e flows in React Native. Same maestro e2e test, same yaml, but 2-3x faster. learn about Ennio
The Hook
“(No spoken dialogue — The audio begins with a sustained, evolving pad sound, creating an atmospheric and slightly tense mood. A subtle, high-frequency riser builds tension, culminating in a significant sub-bass drop/impact.)”
Problem Agitation
“(No spoken dialogue — A rhythmic, pulsing synth bass and a driving, high-energy electronic drum beat enter. A bright, arpeggiated synth melody adds urgency and forward momentum.)”
Product Reveal
“(No spoken dialogue — A more intense and layered section with additional synth textures and percussion begins. A prominent sweep effect transitions the scene, followed by a powerful sub-bass impact.)”
Feature Teaser
“(No spoken dialogue — The track continues with evolving synth pads, rhythmic elements, and occasional high-frequency sweeps and risers, maintaining a dynamic and engaging soundscape. A final, impactful sub-bass drop is heard, followed by a sustained, resonant synth pad that slowly fades out.)”
Synthesizable in Remotion · key components of the dual-screen-speed-showcase template.
Two identical mobile UI screens are displayed side-by-side. One screen (Maestro) progresses through a user flow at a standard pace, while the other (Ennio) completes the same flow significantly faster, often showing a static 'completed' state while the first is still animating.
Use two `<Sequence>` components for each screen. Animate UI elements within the 'Maestro' sequence with `spring()` or `interpolate()` for realistic delays. For 'Ennio', use `AbsoluteFill` with a `delay` prop to show the final state much earlier, or animate its elements with significantly shorter durations and faster easing curves. Overlay `AbsoluteFill` text elements for the time counters, updating them with `useCurrentFrame()` and `fps()`.
Specific UI elements (e.g., buttons, product cards, navigation tabs) are highlighted or animated upon interaction, such as a button press or a screen transition.
Implement `spring()` animations for button presses (scale down slightly, then back up). Use `interpolate()` for opacity and `translateX`/`translateY` for screen transitions, simulating navigation. Apply `delay` props to individual UI elements to create a staggered, natural-looking interaction flow.
A numerical timer is displayed prominently below each mobile screen, continuously updating to show the elapsed time for the respective user flow.
Create a `<Text>` component for each timer. Use `useCurrentFrame()` and `fps()` to calculate elapsed time in seconds. Format the output to 'XX.XXs'. For 'Ennio', once its flow is complete, freeze its timer at the final, faster duration using a conditional `interpolate()` or `spring()` with a very high damping ratio.
Purpose. Introduce the two competing systems and establish the premise of a performance comparison.
Execution. Static split-screen showing two identical app interfaces, one labeled 'MAESTRO' and the other 'ENNIO', with initial time counters.
Purpose. Demonstrate a common user flow where 'MAESTRO' exhibits noticeable delays.
Execution. The 'MAESTRO' app navigates through product listings, adds items to a cart, and proceeds to checkout, with its timer steadily increasing.
Purpose. Showcase 'ENNIO' completing the exact same user flow significantly faster.
Execution. The 'ENNIO' app's UI quickly reaches the final state of the user flow, with its timer stopping at a much lower value, while 'MAESTRO' is still in progress.
Purpose. Reinforce 'ENNIO's' superior performance across multiple scenarios.
Execution. Continued side-by-side comparison, with 'MAESTRO' performing various actions (e.g., removing items, browsing) and 'ENNIO' consistently showing a completed, faster state.
Objective
Demonstrate a new cloud IDE's faster code compilation and deployment compared to a legacy system.How the recipe adapts
The split-screen would show two terminal windows or IDE interfaces. The 'MAESTRO' side would display a longer compilation log and deployment progress bar, while the 'ENNIO' side would show a much shorter log and a rapidly completing progress bar, with its timer stopping significantly earlier. UI elements like 'Compile' and 'Deploy' buttons would animate on click, and the output logs would scroll quickly on the 'ENNIO' side.Scene durations (4 scenes, 77s)
Key Remotion components

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