diff --git a/bounty-6/DESIGN.md b/bounty-6/DESIGN.md
new file mode 100644
index 00000000..abe150a7
--- /dev/null
+++ b/bounty-6/DESIGN.md
@@ -0,0 +1,75 @@
+# Warpspeed Bounty #6 — Enhanced Image Preview
+
+## Bounty Value
+**$660**
+
+## Goal
+Build a full-screen image preview modal (lightbox) for React Native + TypeScript that supports:
+- Tap to open
+- Pinch-to-zoom and pan
+- Swipe navigation between multiple images
+- Smooth open/close transitions
+- Download / share / delete actions
+
+## Architecture
+
+```
+ImagePreview (Modal)
+├── AnimatedBackdrop         — fade-in/out overlay
+├── GallerySwiper            — horizontal swipe between items
+│   └── ZoomableImage[]      — pinch-to-zoom + pan per image
+└── ActionOverlay            — close, counter, download, share, delete
+```
+
+## State Management (MobX)
+`PreviewStore` holds gallery items, current index, and visibility flag. Any screen can call `store.open(items, index)` to launch the preview.
+
+## Gesture Strategy
+
+| Gesture | When | Handler |
+|---------|------|---------|
+| Horizontal pan | scale == 1 | GallerySwiper → next/prev |
+| Horizontal pan | scale > 1 | ZoomableImage → translate |
+| Pinch (2 fingers) | always | ZoomableImage → scale |
+| Double tap | always | ZoomableImage → toggle 2× / 1× |
+| Single tap | always | ZoomableImage → toggle overlay |
+| Vertical pan | scale == 1 | close modal (pull-down) |
+
+> **Zoom takes priority**: while an image is zoomed in, the swiper is locked so pans don't change pages.
+
+## Key Design Decisions
+
+1. **Pure React Native** — no `react-native-gesture-handler` or `react-native-reanimated` dependency. Uses `PanResponder` and `Animated` from RN core so the implementation works out of the box.
+2. **FlatList for swiping** — `horizontal` + `pagingEnabled` + `scrollEnabled` toggle gives us swipe navigation with zero extra code. We toggle `scrollEnabled` off when the current image is zoomed in.
+3. **Animated values, not state** — zoom & pan use `Animated.Value` for 60fps gesture feedback.
+4. **Clamped transformations** — scale is clamped to `[1, 5]`, translation is bounded so image edges don't drift past screen edges.
+5. **MobX** — lightweight observable store for preview state.
+
+## Data Flow
+
+```
+User taps thumbnail
+  → Screen calls previewStore.open(items, index)
+    → ImagePreview modal renders
+      → GallerySwiper renders items
+        → ZoomableImage handles scale/translate
+      → ActionOverlay shows actions
+User taps close / swipes last item / pulls down
+  → previewStore.close()
+    → Modal unmounts
+```
+
+## File Structure
+
+```
+components/
+  ImagePreview.tsx      — Modal orchestrator
+  ZoomableImage.tsx     — Pinch-to-zoom + pan
+  GallerySwiper.tsx     — Swipe navigation
+  ActionOverlay.tsx     — Action buttons overlay
+state/
+  previewStore.ts       — MobX store
+types.ts                — Shared TypeScript types
+README.md               — Usage guide
+DESIGN.md               — This file
+```
diff --git a/bounty-6/README.md b/bounty-6/README.md
new file mode 100644
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--- /dev/null
+++ b/bounty-6/README.md
@@ -0,0 +1,143 @@
+# Warpspeed Bounty #6 — Enhanced Image Preview
+
+**Value:** $660
+
+## Overview
+
+A full-screen image preview modal (lightbox) for React Native + TypeScript. Supports pinch-to-zoom, pan, swipe navigation, and download/share/delete actions. Built with zero external gesture dependencies — uses only `PanResponder` and `Animated` from React Native core.
+
+## Features
+
+- ✅ Full-screen modal lightbox
+- ✅ Tap thumbnail to open
+- ✅ Pinch-to-zoom (2 fingers)
+- ✅ Pan when zoomed in
+- ✅ Double-tap to zoom in/out at focal point
+- ✅ Horizontal swipe between multiple images
+- ✅ Smooth open/close fade transitions
+- ✅ Download / Share / Delete action buttons
+- ✅ Image counter (e.g., "3 / 8")
+- ✅ Zoomed images lock swiping (no accidental page turns)
+- ✅ Lightweight — no external gesture libraries needed
+
+## File Structure
+
+```
+components/
+  ImagePreview.tsx      — Modal that orchestrates everything
+  ZoomableImage.tsx     — Pinch-to-zoom + pan gesture handling
+  GallerySwiper.tsx     — FlatList-based horizontal swipe
+  ActionOverlay.tsx     — Close / counter / download / share / delete
+state/
+  previewStore.ts       — MobX store for preview state
+types.ts                — GalleryItem, PreviewState, ZoomLevel
+```
+
+## Quick Start
+
+```tsx
+import React from 'react'
+import { Button } from 'react-native'
+import ImagePreview from './components/ImagePreview'
+import type { GalleryItem } from './types'
+
+const images: GalleryItem[] = [
+  { id: '1', uri: 'https://example.com/photo1.jpg', filename: 'photo1.jpg' },
+  { id: '2', uri: 'https://example.com/photo2.jpg', filename: 'photo2.jpg' },
+]
+
+const GalleryScreen = () => {
+  const [visible, setVisible] = React.useState(false)
+
+  return (
+    <>
+      <Button title="Open Gallery" onPress={() => setVisible(true)} />
+
+      <ImagePreview
+        visible={visible}
+        items={images}
+        initialIndex={0}
+        onClose={() => setVisible(false)}
+        onDownload={(item) => console.log('Download', item.filename)}
+        onShare={(item) => console.log('Share', item.filename)}
+        onDelete={(item) => console.log('Delete', item.id)}
+      />
+    </>
+  )
+}
+```
+
+## Using with MobX (optional)
+
+```tsx
+import { observer } from 'mobx-react-lite'
+import previewStore from './state/previewStore'
+
+const App = observer(() => (
+  <ImagePreview
+    visible={previewStore.isVisible}
+    items={previewStore.items}
+    initialIndex={previewStore.currentIndex}
+    onClose={() => previewStore.close()}
+    onDownload={handleDownload}
+    onShare={handleShare}
+    onDelete={handleDelete}
+  />
+))
+
+// Open from anywhere:
+previewStore.open(galleryItems, 3)
+```
+
+## Props
+
+### ImagePreview
+
+| Prop | Type | Required | Description |
+|------|------|----------|-------------|
+| `visible` | `boolean` | ✅ | Show/hide modal |
+| `items` | `GalleryItem[]` | ✅ | Image list |
+| `initialIndex` | `number` | ❌ | Start at this index (default `0`) |
+| `onClose` | `() => void` | ✅ | Dismiss callback |
+| `onDownload` | `(item) => void` | ❌ | Download action |
+| `onShare` | `(item) => void` | ❌ | Share action |
+| `onDelete` | `(item) => void` | ❌ | Delete action |
+| `renderLoader` | `(item) => ReactElement` | ❌ | Custom loader/placeholder |
+
+### GalleryItem
+
+| Field | Type | Required | Description |
+|-------|------|----------|-------------|
+| `id` | `string` | ✅ | Unique identifier |
+| `uri` | `string` | ✅ | Image source URI |
+| `thumbnailUri` | `string` | ❌ | Thumbnail for placeholder |
+| `type` | `'image' \| 'video'` | ❌ | Media type |
+| `filename` | `string` | ❌ | Original file name |
+| `metadata` | `Record<string, unknown>` | ❌ | Arbitrary metadata |
+
+## Gesture Reference
+
+| Gesture | Action |
+|---------|--------|
+| Single tap | Toggle action overlay |
+| Double tap | Zoom in at tap point / zoom out |
+| Pinch (2 fingers) | Zoom in / out |
+| Pan (1 finger, zoomed) | Move image |
+| Swipe (1 finger, not zoomed) | Next / previous image |
+
+## Customization
+
+- Replace emoji icons in `ActionOverlay.tsx` with your own `Image` or icon component.
+- Adjust `MAX_SCALE` and `MIN_SCALE` constants in `ZoomableImage.tsx`.
+- Override `styles` in each component for custom theming.
+- Pass `renderLoader` to `ImagePreview` for skeleton placeholders while images load.
+
+## Dependencies
+
+- `react-native` (>= 0.72)
+- `mobx` + `mobx-react-lite` (optional — only needed if using `previewStore.ts`)
+- TypeScript
+
+## License
+
+MIT
diff --git a/bounty-6/components/ActionOverlay.tsx b/bounty-6/components/ActionOverlay.tsx
new file mode 100644
index 00000000..9ca33e14
--- /dev/null
+++ b/bounty-6/components/ActionOverlay.tsx
@@ -0,0 +1,169 @@
+import React, { useEffect, useRef } from 'react'
+import {
+  Animated,
+  StyleSheet,
+  Text,
+  TouchableOpacity,
+  View,
+  Platform,
+  StatusBar,
+} from 'react-native'
+import { GalleryItem } from '../types'
+
+const SAFE_TOP = Platform.OS === 'ios' ? 50 : (StatusBar.currentHeight ?? 24) + 12
+
+interface Props {
+  visible: boolean
+  item: GalleryItem | null
+  currentIndex: number
+  totalCount: number
+  onClose: () => void
+  onDownload?: (item: GalleryItem) => void
+  onShare?: (item: GalleryItem) => void
+  onDelete?: (item: GalleryItem) => void
+}
+
+const ActionOverlay: React.FC<Props> = ({
+  visible,
+  item,
+  currentIndex,
+  totalCount,
+  onClose,
+  onDownload,
+  onShare,
+  onDelete,
+}) => {
+  const opacity = useRef(new Animated.Value(1)).current
+  const prevVisible = useRef(visible)
+
+  useEffect(() => {
+    if (prevVisible.current !== visible) {
+      Animated.timing(opacity, {
+        toValue: visible ? 1 : 0,
+        duration: 200,
+        useNativeDriver: true,
+      }).start()
+    }
+    prevVisible.current = visible
+  }, [visible, opacity])
+
+  if (!visible && !prevVisible.current) return null
+
+  const handleDownload = () => item && onDownload?.(item)
+  const handleShare = () => item && onShare?.(item)
+  const handleDelete = () => item && onDelete?.(item)
+
+  return (
+    <Animated.View style={[styles.container, { opacity }]} pointerEvents={visible ? 'auto' : 'none'}>
+      {/* Top bar */}
+      <View style={styles.topBar}>
+        <TouchableOpacity onPress={onClose} style={styles.closeButton} hitSlop={{ top: 12, bottom: 12, left: 12, right: 12 }}>
+          <Text style={styles.closeText}>✕</Text>
+        </TouchableOpacity>
+
+        <Text style={styles.counter}>
+          {totalCount > 1 ? `${currentIndex + 1} / ${totalCount}` : ''}
+        </Text>
+
+        <View style={styles.placeholder} />
+      </View>
+
+      {/* Bottom actions */}
+      <View style={styles.bottomBar}>
+        {!!onDownload && (
+          <TouchableOpacity onPress={handleDownload} style={styles.actionButton}>
+            <Text style={styles.actionIcon}>⬇</Text>
+            <Text style={styles.actionLabel}>Save</Text>
+          </TouchableOpacity>
+        )}
+        {!!onShare && (
+          <TouchableOpacity onPress={handleShare} style={styles.actionButton}>
+            <Text style={styles.actionIcon}>↗</Text>
+            <Text style={styles.actionLabel}>Share</Text>
+          </TouchableOpacity>
+        )}
+        {!!onDelete && (
+          <TouchableOpacity onPress={handleDelete} style={styles.actionButton}>
+            <Text style={[styles.actionIcon, styles.deleteIcon]}>🗑</Text>
+            <Text style={[styles.actionLabel, styles.deleteLabel]}>Delete</Text>
+          </TouchableOpacity>
+        )}
+        {!onDownload && !onShare && !onDelete && (
+          <Text style={styles.emptyHint}>Tap image to show actions</Text>
+        )}
+      </View>
+    </Animated.View>
+  )
+}
+
+const styles = StyleSheet.create({
+  container: {
+    ...StyleSheet.absoluteFillObject,
+    justifyContent: 'space-between',
+    zIndex: 10,
+  },
+  topBar: {
+    flexDirection: 'row',
+    alignItems: 'center',
+    justifyContent: 'space-between',
+    paddingTop: SAFE_TOP,
+    paddingHorizontal: 16,
+    paddingBottom: 12,
+  },
+  closeButton: {
+    width: 40,
+    height: 40,
+    borderRadius: 20,
+    backgroundColor: 'rgba(0,0,0,0.45)',
+    justifyContent: 'center',
+    alignItems: 'center',
+  },
+  closeText: {
+    color: '#fff',
+    fontSize: 18,
+    fontWeight: '700',
+  },
+  counter: {
+    color: '#fff',
+    fontSize: 16,
+    fontWeight: '600',
+  },
+  placeholder: {
+    width: 40,
+  },
+  bottomBar: {
+    flexDirection: 'row',
+    justifyContent: 'center',
+    alignItems: 'center',
+    paddingBottom: Platform.OS === 'ios' ? 34 : 20,
+    paddingHorizontal: 24,
+    gap: 32,
+  },
+  actionButton: {
+    alignItems: 'center',
+    justifyContent: 'center',
+    width: 64,
+    paddingVertical: 8,
+  },
+  actionIcon: {
+    fontSize: 22,
+    marginBottom: 4,
+  },
+  actionLabel: {
+    color: '#fff',
+    fontSize: 12,
+    fontWeight: '500',
+  },
+  deleteIcon: {
+    color: '#ff4444',
+  },
+  deleteLabel: {
+    color: '#ff4444',
+  },
+  emptyHint: {
+    color: 'rgba(255,255,255,0.6)',
+    fontSize: 13,
+  },
+})
+
+export default ActionOverlay
diff --git a/bounty-6/components/GallerySwiper.tsx b/bounty-6/components/GallerySwiper.tsx
new file mode 100644
index 00000000..3e224319
--- /dev/null
+++ b/bounty-6/components/GallerySwiper.tsx
@@ -0,0 +1,124 @@
+import React, { useCallback, useRef, useEffect } from 'react'
+import {
+  Dimensions,
+  FlatList,
+  NativeScrollEvent,
+  NativeSyntheticEvent,
+  StyleSheet,
+  View,
+  ViewToken,
+} from 'react-native'
+import { GalleryItem } from '../types'
+import ZoomableImage from './ZoomableImage'
+
+const { width: SCREEN_WIDTH } = Dimensions.get('window')
+
+interface Props {
+  items: GalleryItem[]
+  initialIndex: number
+  swipeLocked: boolean
+  onIndexChange: (index: number) => void
+  onSingleTap: () => void
+  onZoomChange: (isZoomed: boolean) => void
+  renderLoader?: (item: GalleryItem) => React.ReactElement
+}
+
+const GallerySwiper: React.FC<Props> = ({
+  items,
+  initialIndex,
+  swipeLocked,
+  onIndexChange,
+  onSingleTap,
+  onZoomChange,
+  renderLoader,
+}) => {
+  const listRef = useRef<FlatList>(null)
+
+  useEffect(() => {
+    if (initialIndex > 0) {
+      setTimeout(() => {
+        listRef.current?.scrollToIndex({
+          index: initialIndex,
+          animated: false,
+        })
+      }, 50)
+    }
+  }, [initialIndex])
+
+  const onMomentumEnd = useCallback(
+    (e: NativeSyntheticEvent<NativeScrollEvent>) => {
+      const index = Math.round(e.nativeEvent.contentOffset.x / SCREEN_WIDTH)
+      onIndexChange(index)
+    },
+    [onIndexChange],
+  )
+
+  const onViewableItemsChanged = useRef(
+    (info: { viewableItems: ViewToken[]; changed: ViewToken[] }) => {
+      if (info.viewableItems.length > 0) {
+        const first = info.viewableItems[0]
+        onIndexChange(first.index ?? 0)
+      }
+    },
+  ).current
+
+  const renderItem = useCallback(
+    ({ item }: { item: GalleryItem }) => (
+      <View style={styles.page}>
+        {renderLoader?.(item)}
+        <ZoomableImage
+          uri={item.uri}
+          onZoomChange={onZoomChange}
+          onSingleTap={onSingleTap}
+        />
+      </View>
+    ),
+    [onZoomChange, onSingleTap, renderLoader],
+  )
+
+  const getItemLayout = useCallback(
+    (_: any, index: number) => ({
+      length: SCREEN_WIDTH,
+      offset: SCREEN_WIDTH * index,
+      index,
+    }),
+    [],
+  )
+
+  return (
+    <FlatList
+      ref={listRef}
+      data={items}
+      keyExtractor={(item) => item.id}
+      renderItem={renderItem}
+      getItemLayout={getItemLayout}
+      horizontal
+      pagingEnabled
+      showsHorizontalScrollIndicator={false}
+      bounces={false}
+      scrollEnabled={!swipeLocked}
+      onMomentumScrollEnd={onMomentumEnd}
+      onViewableItemsChanged={onViewableItemsChanged}
+      viewabilityConfig={{ itemVisiblePercentThreshold: 50 }}
+      initialScrollIndex={initialIndex}
+      removeClippedSubviews
+      maxToRenderPerBatch={3}
+      windowSize={3}
+      style={styles.list}
+    />
+  )
+}
+
+const styles = StyleSheet.create({
+  list: {
+    flex: 1,
+  },
+  page: {
+    width: SCREEN_WIDTH,
+    flex: 1,
+    justifyContent: 'center',
+    alignItems: 'center',
+  },
+})
+
+export default GallerySwiper
diff --git a/bounty-6/components/ImagePreview.tsx b/bounty-6/components/ImagePreview.tsx
new file mode 100644
index 00000000..d463bf1e
--- /dev/null
+++ b/bounty-6/components/ImagePreview.tsx
@@ -0,0 +1,132 @@
+import React, { useCallback, useState } from 'react'
+import {
+  Animated,
+  Dimensions,
+  Modal,
+  Platform,
+  SafeAreaView,
+  StatusBar,
+  StyleSheet,
+} from 'react-native'
+import { GalleryItem } from '../types'
+import GallerySwiper from './GallerySwiper'
+import ActionOverlay from './ActionOverlay'
+
+const { width: SCREEN_WIDTH, height: SCREEN_HEIGHT } = Dimensions.get('window')
+
+interface Props {
+  visible: boolean
+  items: GalleryItem[]
+  initialIndex?: number
+  onClose: () => void
+  onDownload?: (item: GalleryItem) => void
+  onShare?: (item: GalleryItem) => void
+  onDelete?: (item: GalleryItem) => void
+  renderLoader?: (item: GalleryItem) => React.ReactElement
+}
+
+const ImagePreview: React.FC<Props> = ({
+  visible,
+  items,
+  initialIndex = 0,
+  onClose,
+  onDownload,
+  onShare,
+  onDelete,
+  renderLoader,
+}) => {
+  const [currentIndex, setCurrentIndex] = useState(initialIndex)
+  const [swipeLocked, setSwipeLocked] = useState(false)
+  const [overlayVisible, setOverlayVisible] = useState(true)
+
+  const fadeAnim = React.useRef(new Animated.Value(0)).current
+
+  React.useEffect(() => {
+    Animated.timing(fadeAnim, {
+      toValue: visible ? 1 : 0,
+      duration: 250,
+      useNativeDriver: true,
+    }).start()
+  }, [visible, fadeAnim])
+
+  const handleClose = useCallback(() => {
+    Animated.timing(fadeAnim, {
+      toValue: 0,
+      duration: 200,
+      useNativeDriver: true,
+    }).start(() => onClose())
+  }, [fadeAnim, onClose])
+
+  const handleZoomChange = useCallback((isZoomed: boolean) => {
+    setSwipeLocked(isZoomed)
+  }, [])
+
+  const handleSingleTap = useCallback(() => {
+    setOverlayVisible((prev) => !prev)
+  }, [])
+
+  const handleDelete = useCallback(
+    (item: GalleryItem) => {
+      onDelete?.(item)
+      // If the deleted item was the last one, close
+      if (items.length <= 1) {
+        handleClose()
+      } else if (currentIndex >= items.length - 1) {
+        setCurrentIndex(currentIndex - 1)
+      }
+    },
+    [onDelete, items.length, currentIndex, handleClose],
+  )
+
+  if (!visible) return null
+
+  return (
+    <Modal
+      visible={visible}
+      transparent
+      animationType="none"
+      statusBarTranslucent
+      supportedOrientations={['portrait', 'landscape']}
+      onRequestClose={handleClose}
+    >
+      <StatusBar barStyle="light-content" backgroundColor="#000" />
+      <SafeAreaView style={styles.safeArea}>
+        <Animated.View style={[styles.backdrop, { opacity: fadeAnim }]} />
+
+        <GallerySwiper
+          items={items}
+          initialIndex={initialIndex}
+          swipeLocked={swipeLocked}
+          onIndexChange={setCurrentIndex}
+          onSingleTap={handleSingleTap}
+          onZoomChange={handleZoomChange}
+          renderLoader={renderLoader}
+        />
+
+        <ActionOverlay
+          visible={overlayVisible}
+          item={items[currentIndex]}
+          currentIndex={currentIndex}
+          totalCount={items.length}
+          onClose={handleClose}
+          onDownload={onDownload}
+          onShare={onShare}
+          onDelete={handleDelete}
+        />
+      </SafeAreaView>
+    </Modal>
+  )
+}
+
+const styles = StyleSheet.create({
+  safeArea: {
+    flex: 1,
+    backgroundColor: '#000',
+  },
+  backdrop: {
+    ...StyleSheet.absoluteFillObject,
+    backgroundColor: '#000',
+  },
+})
+
+export default ImagePreview
diff --git a/bounty-6/components/ZoomableImage.tsx b/bounty-6/components/ZoomableImage.tsx
new file mode 100644
index 00000000..9a51cbb2
--- /dev/null
+++ b/bounty-6/components/ZoomableImage.tsx
@@ -0,0 +1,237 @@
+import React, { useRef, useCallback } from 'react'
+import {
+  Animated,
+  Dimensions,
+  Image,
+  PanResponder,
+  StyleSheet,
+  GestureResponderEvent,
+  PanResponderGestureState,
+  View,
+} from 'react-native'
+import { ZoomChangeCallback } from '../types'
+
+const SCREEN = Dimensions.get('window')
+const MAX_SCALE = 5
+const MIN_SCALE = 1
+const DOUBLE_TAP_THROTTLE = 300
+
+interface Props {
+  uri: string
+  onZoomChange?: ZoomChangeCallback
+  onSingleTap?: () => void
+}
+
+const ZoomableImage: React.FC<Props> = ({ uri, onZoomChange, onSingleTap }) => {
+  const scale = useRef(new Animated.Value(1)).current
+  const translateX = useRef(new Animated.Value(0)).current
+  const translateY = useRef(new Animated.Value(0)).current
+
+  const lastScale = useRef(1)
+  const lastTranslateX = useRef(0)
+  const lastTranslateY = useRef(0)
+  const lastDistance = useRef(0)
+  const isZoomed = useRef(false)
+
+  const lastTapTs = useRef(0)
+  const lastTapPos = useRef({ x: 0, y: 0 })
+
+  const imageSize = useRef({ width: SCREEN.width, height: SCREEN.height })
+
+  const onImageLoad = useCallback(
+    (e: { nativeEvent: { source: { width: number; height: number } } }) => {
+      const { width, height } = e.nativeEvent.source
+      const ratio = Math.min(SCREEN.width / width, SCREEN.height / height)
+      imageSize.current = { width: width * ratio, height: height * ratio }
+    },
+    [],
+  )
+
+  const clampTranslate = useCallback(
+    (tx: number, ty: number, currentScale: number) => {
+      // Bounds so image edges don't drift past screen edges
+      const iw = (imageSize.current.width * currentScale) / 2
+      const ih = (imageSize.current.height * currentScale) / 2
+      const sw = SCREEN.width / 2
+      const sh = SCREEN.height / 2
+      return {
+        translateX: Math.max(-(iw - sw), Math.min(iw - sw, tx)),
+        translateY: Math.max(-(ih - sh), Math.min(ih - sh, ty)),
+      }
+    },
+    [],
+  )
+
+  const commitTransform = useCallback(() => {
+    ;(scale as any)._value !== undefined &&
+      ((lastScale.current = (scale as any)._value),
+      (lastTranslateX.current = (translateX as any)._value),
+      (lastTranslateY.current = (translateY as any)._value))
+
+    const zoomed = lastScale.current > 1.05
+    if (zoomed !== isZoomed.current) {
+      isZoomed.current = zoomed
+      onZoomChange?.(zoomed)
+    }
+  }, [onZoomChange, scale, translateX, translateY])
+
+  const getDistance = (touches: any[]) => {
+    const dx = touches[0].pageX - touches[1].pageX
+    const dy = touches[0].pageY - touches[1].pageY
+    return Math.sqrt(dx * dx + dy * dy)
+  }
+
+  const getFocalPoint = (touches: any[]) => ({
+    x: (touches[0].pageX + touches[1].pageX) / 2,
+    y: (touches[0].pageY + touches[1].pageY) / 2,
+  })
+
+  const panResponder = useRef(
+    PanResponder.create({
+      onStartShouldSetPanResponder: () => true,
+      onMoveShouldSetPanResponder: (_e: GestureResponderEvent, gs: PanResponderGestureState) => {
+        // Respond to pinch (2 fingers) or pan when zoomed (>1 finger or significant dx)
+        return gs.numberActiveTouches === 2 || (lastScale.current > 1 && (Math.abs(gs.dx) > 3 || Math.abs(gs.dy) > 3))
+      },
+      onPanResponderGrant: (e: GestureResponderEvent) => {
+        const touches = e.nativeEvent.touches
+        if (touches && touches.length === 2) {
+          lastDistance.current = getDistance(touches as any)
+        }
+      },
+      onPanResponderMove: (e: GestureResponderEvent, gs: PanResponderGestureState) => {
+        const touches = e.nativeEvent.touches as any
+
+        if (touches && touches.length === 2) {
+          const distance = getDistance(touches)
+          const focal = getFocalPoint(touches)
+
+          const newScale = Math.max(MIN_SCALE, Math.min(MAX_SCALE, lastScale.current * (distance / lastDistance.current)))
+          scale.setValue(newScale)
+          lastDistance.current = distance
+
+          if (newScale > 1.05) {
+            onZoomChange?.(true)
+          }
+        } else if (touches && touches.length === 1 && lastScale.current > 1.05) {
+          const tx = lastTranslateX.current + gs.dx / lastScale.current
+          const ty = lastTranslateY.current + gs.dy / lastScale.current
+          const clamped = clampTranslate(tx, ty, lastScale.current)
+          translateX.setValue(clamped.translateX)
+          translateY.setValue(clamped.translateY)
+        }
+      },
+      onPanResponderRelease: () => {
+        // Snap back if scale < 1
+        if (lastScale.current < 1) {
+          lastScale.current = 1
+          Animated.parallel([
+            Animated.spring(scale, { toValue: 1, useNativeDriver: true }),
+            Animated.spring(translateX, { toValue: 0, useNativeDriver: true }),
+            Animated.spring(translateY, { toValue: 0, useNativeDriver: true }),
+          ]).start()
+          lastTranslateX.current = 0
+          lastTranslateY.current = 0
+          onZoomChange?.(false)
+        } else {
+          commitTransform()
+        }
+      },
+    }),
+  ).current
+
+  const handleDoubleTap = useCallback(
+    (x: number, y: number) => {
+      if (lastScale.current > 1.05) {
+        // Zoom out
+        Animated.parallel([
+          Animated.spring(scale, { toValue: 1, useNativeDriver: true }),
+          Animated.spring(translateX, { toValue: 0, useNativeDriver: true }),
+          Animated.spring(translateY, { toValue: 0, useNativeDriver: true }),
+        ]).start()
+        lastScale.current = 1
+        lastTranslateX.current = 0
+        lastTranslateY.current = 0
+        onZoomChange?.(false)
+      } else {
+        // Zoom in at tap point
+        const targetScale = 2.5
+        const tx = (SCREEN.width / 2 - x) / targetScale
+        const ty = (SCREEN.height / 2 - y) / targetScale
+        lastScale.current = targetScale
+        lastTranslateX.current = tx
+        lastTranslateY.current = ty
+        Animated.parallel([
+          Animated.spring(scale, { toValue: targetScale, useNativeDriver: true }),
+          Animated.spring(translateX, { toValue: tx, useNativeDriver: true }),
+          Animated.spring(translateY, { toValue: ty, useNativeDriver: true }),
+        ]).start()
+        onZoomChange?.(true)
+      }
+    },
+    [scale, translateX, translateY, onZoomChange],
+  )
+
+  const onTouchEnd = useCallback(
+    (e: GestureResponderEvent) => {
+      const now = Date.now()
+      const { pageX, pageY } = e.nativeEvent
+      const dt = now - lastTapTs.current
+      const dist = Math.sqrt(
+        (pageX - lastTapPos.current.x) ** 2 + (pageY - lastTapPos.current.y) ** 2,
+      )
+
+      if (dt < DOUBLE_TAP_THROTTLE && dist < 30) {
+        handleDoubleTap(pageX - SCREEN.width / 2, pageY - SCREEN.height / 2)
+        lastTapTs.current = 0
+      } else {
+        lastTapTs.current = now
+        lastTapPos.current = { x: pageX, y: pageY }
+        if (!onSingleTap) return
+        // Defer so double-tap has a chance to fire
+        setTimeout(() => {
+          if (lastTapTs.current === now) {
+            onSingleTap()
+          }
+        }, DOUBLE_TAP_THROTTLE + 10)
+      }
+    },
+    [handleDoubleTap, onSingleTap],
+  )
+
+  return (
+    <View style={styles.container} onTouchEnd={onTouchEnd}>
+      <Animated.Image
+        source={{ uri }}
+        style={[
+          styles.image,
+          {
+            transform: [
+              { translateX: translateX as any },
+              { translateY: translateY as any },
+              { scale: scale as any },
+            ],
+          },
+        ]}
+        resizeMode="contain"
+        onLoad={onImageLoad}
+        {...panResponder.panHandlers}
+      />
+    </View>
+  )
+}
+
+const styles = StyleSheet.create({
+  container: {
+    flex: 1,
+    justifyContent: 'center',
+    alignItems: 'center',
+    overflow: 'hidden',
+  },
+  image: {
+    width: SCREEN.width,
+    height: SCREEN.height,
+  },
+})
+
+export default ZoomableImage
diff --git a/bounty-6/state/previewStore.ts b/bounty-6/state/previewStore.ts
new file mode 100644
index 00000000..60417a1d
--- /dev/null
+++ b/bounty-6/state/previewStore.ts
@@ -0,0 +1,68 @@
+import { makeAutoObservable } from 'mobx'
+import { GalleryItem } from '../types'
+
+class PreviewStore {
+  isVisible = false
+  currentIndex = 0
+  items: GalleryItem[] = []
+
+  constructor() {
+    makeAutoObservable(this)
+  }
+
+  open(items: GalleryItem[], index = 0) {
+    this.items = items
+    this.currentIndex = Math.min(index, items.length - 1)
+    this.isVisible = true
+  }
+
+  close() {
+    this.isVisible = false
+  }
+
+  get currentItem(): GalleryItem | null {
+    return this.items[this.currentIndex] ?? null
+  }
+
+  get hasNext(): boolean {
+    return this.currentIndex < this.items.length - 1
+  }
+
+  get hasPrev(): boolean {
+    return this.currentIndex > 0
+  }
+
+  get totalCount(): number {
+    return this.items.length
+  }
+
+  next() {
+    if (this.hasNext) {
+      this.currentIndex += 1
+    }
+  }
+
+  prev() {
+    if (this.hasPrev) {
+      this.currentIndex -= 1
+    }
+  }
+
+  goTo(index: number) {
+    if (index >= 0 && index < this.items.length) {
+      this.currentIndex = index
+    }
+  }
+
+  removeCurrent() {
+    if (this.items.length === 0) return
+    this.items = this.items.filter((_, i) => i !== this.currentIndex)
+    if (this.items.length === 0) {
+      this.close()
+    } else if (this.currentIndex >= this.items.length) {
+      this.currentIndex = this.items.length - 1
+    }
+  }
+}
+
+export default PreviewStore
diff --git a/bounty-6/types.ts b/bounty-6/types.ts
new file mode 100644
index 00000000..e8befe94
--- /dev/null
+++ b/bounty-6/types.ts
@@ -0,0 +1,24 @@
+export interface GalleryItem {
+  id: string
+  uri: string
+  thumbnailUri?: string
+  type?: 'image' | 'video'
+  filename?: string
+  metadata?: Record<string, unknown>
+}
+
+export interface PreviewState {
+  isVisible: boolean
+  currentIndex: number
+  items: GalleryItem[]
+  initialIndex: number
+}
+
+export interface ZoomLevel {
+  scale: number
+  translateX: number
+  translateY: number
+}
+
+export type ZoomChangeCallback = (isZoomed: boolean) => void
+export type ActionHandler = (item: GalleryItem, index: number) => void