An Apple Music–style synced lyrics view with a word-by-word highlight sweep, an auto-scrolling sheet that cascades line-by-line with a staggered spring, and a progressive blur now-playing header. Tap any line to seek, drag to browse, and auto-follow resumes once you go idle. Drop it into a music player, podcast, or any read-along screen.
Lyrics are rendered on a Skia Canvas: the dim base text is drawn once, and a bright copy is painted through a [white, white, transparent] LinearGradient whose stops follow a per-word sweep, so the highlight reads as a sweep from the left without recoloring the base. Word timings are precomputed into a time→pixel mapping over each line 'unrolled' row by row. All motion runs on the UI thread via react-native-reanimated v4 worklets (shared values, useDerivedValue, useAnimatedReaction); the active line scales up with withSpring while neighbors get a depth-of-field Skia Blur. The auto-scroll uses a closed-form critically-damped spring step with a staggered cascade to mimic Apple's settle. The sticky header's progressive blur is an expo-blur BlurView faded by a MaskedView over an eased gradient (react-native-easing-gradient) so it ramps off smoothly instead of reading as a flat frosted panel. Gestures (pan with withDecay, tap-to-seek) come from react-native-gesture-handler, with box-none header layout so empty header taps fall through to the sheet. iOS shows SF Symbols via expo-symbols with a unicode glyph fallback on Android/web. Built and tested on Expo SDK 56 (RN 0.85, Reanimated 4); web works once the CanvasKit WASM is loaded before Skia imports run. Requires a custom dev client — Skia is not available in Expo Go.
The iPhone Dynamic Island morphs into a thermal printer and feeds out a receipt line-block by line-block, then tap to tear the finished sheet away. Perfect for checkout confirmations, order-success screens, paywalls, or any moment worth celebrating.
A Telegram-style chat list row you can drag either way to reveal circular action buttons — Mute, Delete, Archive on the left drag, Unread and Pin on the right. Buttons stagger in as the row travels, overdragging stretches the edge button into a pill that fires its action on release, and only one row can ever be open at a time. Drop it around any list item (FlatList, LegendList, FlashList) that needs iOS-grade swipe actions.
An Apple-Calendar-style card whose big day number split-flaps through dates like an airport board or flip clock. Every flip is driven by a single 0..1 shared value, so you can scrub it with the included drag slider or play it through with a spring or timing the control and the calendar can never disagree.
Most crows would've grabbed something by now.