The glow is a single Skia RuntimeEffect written in SkSL and painted twice per card, once for the fill and once for the hairline border, so the light follows the card's own rounded outline instead of sitting over it as a blurred layer. Its uniforms are Reanimated derived values, so scroll position, audio level and intro progress reach the GPU on the UI thread and nothing re-renders in JS while a card is talking. Level comes from expo-audio: the sample listener computes RMS per buffer, and an asymmetric follower with a fast attack and a slow release smooths it inside a useFrameCallback worklet, which is what gives the rim its lag behind the voice. Where PCM sampling is unavailable, a synthetic speech-shaped envelope takes over so the card never reads as dead. The carousel itself is an Animated.ScrollView with snapToInterval and disableIntervalMomentum; card scale follows a raised cosine of the distance from centre, and expo-haptics fires a selection tick when the snap resolves. Skia and Reanimated worklets both need a development build, not Expo Go. Built on Expo SDK 56 with React Native 0.85, Reanimated 4.3 and Skia 2.6.2; web runs through CanvasKit, which index.ts loads before registering the root component.
A snap carousel of voice cards, pixel-matched to Claude's voice settings: the centred card glows from a Skia shader driven by the audio it plays. Cards ease down a measured scale curve as they leave the centre, dots track the scroll, and a selection haptic fires once the snap settles. Drop it into an onboarding or settings flow where a user auditions voices.
A bank card that ices over when you tap Freeze, with a Skia runtime shader growing a dendritic frost front from the four corners. It refracts the artwork through crystal facets and creeps an ice lattice onto the background behind it. Tap a card to lift it out of the wallet list onto a dimmed scrim, then toggle freeze from the focus bar. Built for fintech card-lock screens.
A slider-based model picker for chat composers: the gauge icon morphs into a full-width slider that floats above the keyboard behind a progressive blur. Press the track to jump to the nearest stop, drag the knob freely, and release to snap; the gauge arc and needle follow the drag continuously. Drop it into any AI composer that needs an inline effort selector.
A skeleton loading placeholder made of shimmering dots, recreating what ChatGPT shows while it generates an image. A static grid of dots is lit by invisible orbs that take turns blooming, drifting and dissolving. Ships with the cycling typewriter status label so you can drop a complete generating-state card into any AI screen.
