fix: resolve all linter errors and type issues

- Remove unused state variables (readsMap, linksMap) by using only setters
- Move VALID_FILTERS constant outside component to fix exhaustive-deps warning
- Remove unused isReading variable in ReadingProgressIndicator
- Remove unused extractUrlFromBookmark function and IndividualBookmark import
- Fix type errors in linksFromBookmarks by extracting metadata from tags instead of non-existent properties

.cursor/plans/rename-archive-to-reads-658dc3b5.plan.md

@@ -0,0 +1,136 @@
+<!-- 658dc3b5-4b0b-4d30-8cfa-a9326f1d467e f1d78d5b-786d-4658-ae4b-56278aba318e -->
+# Lazy Load Me Component Tabs
+
+## Overview
+
+Currently, the Me component loads all data for all tabs upfront, causing 30+ second load times even when viewing a single tab. This plan implements lazy loading where only the active tab's data is fetched on demand.
+
+## Implementation Strategy
+
+Based on user requirements:
+
+- Load only the active tab's data (pure lazy loading)
+- No background prefetching
+- Show cached data immediately, refresh in background when revisiting tabs
+- Works for both `/me` (own profile) and `/p/` (other profiles) using the same code
+
+## Key Insight
+
+The Me component already handles both own profile and other profiles via the `isOwnProfile` flag. The lazy loading will naturally work for both cases:
+
+- Own profile (`/me`): Loads all tabs including private data (bookmarks, reads)
+- Other profiles (`/p/npub...`): Only loads public tabs (highlights, writings)
+
+## Changes Required
+
+### 1. Update Me.tsx Loading Logic
+
+**Current behavior**: Single `useEffect` loads all data (highlights, writings, bookmarks, reads) regardless of active tab.
+
+**New behavior**:
+
+- Create separate loading functions per tab
+- Load only active tab's data on mount and tab switches
+- Show cached data immediately if available
+- Refresh cached data in background when tab is revisited
+
+**Key changes**:
+
+- Remove the monolithic `loadData()` function
+- Add `loadedTabs` state to track which tabs have been fetched
+- Create tab-specific loaders: `loadHighlights()`, `loadWritings()`, `loadBookmarks()`, `loadReads()`
+- Add `useEffect` that watches `activeTab` and loads data for current tab only
+- Check cache first, display cached data, then refresh in background
+
+**Code location**: Lines 64-123 in `src/components/Me.tsx`
+
+### 2. Per-Tab Loading State
+
+Add tab-specific loading tracking:
+
+```typescript
+const [loadedTabs, setLoadedTabs] = useState<Set<TabType>>(new Set())
+```
+
+This prevents unnecessary reloads and allows showing cached data instantly.
+
+### 3. Tab-Specific Load Functions
+
+Create individual functions:
+
+- `loadHighlightsTab()` - fetch highlights
+- `loadWritingsTab()` - fetch writings  
+- `loadReadingListTab()` - fetch bookmarks
+- `loadReadsTab()` - fetch bookmarks first, then reads
+
+Each function:
+
+1. Checks cache, displays if available
+2. Sets loading state
+3. Fetches fresh data
+4. Updates state and cache
+5. Marks tab as loaded
+
+### 4. Tab Switch Effect
+
+Replace the current useEffect with:
+
+```typescript
+useEffect(() => {
+  if (!activeTab || !viewingPubkey) return
+  
+  // Check if we have cached data
+  const cached = getCachedMeData(viewingPubkey)
+  if (cached) {
+    // Show cached data immediately
+    setHighlights(cached.highlights)
+    setBookmarks(cached.bookmarks)
+    setReads(cached.reads)
+    // Continue to refresh in background
+  }
+  
+  // Load data for active tab
+  switch (activeTab) {
+    case 'highlights':
+      loadHighlightsTab()
+      break
+    case 'writings':
+      loadWritingsTab()
+      break
+    case 'reading-list':
+      loadReadingListTab()
+      break
+    case 'reads':
+      loadReadsTab()
+      break
+  }
+}, [activeTab, viewingPubkey, refreshTrigger])
+```
+
+### 5. Handle Pull-to-Refresh
+
+Update pull-to-refresh logic to only reload the active tab instead of all tabs.
+
+## Benefits
+
+- Initial load: ~2-5s instead of 30+ seconds (only loads one tab)
+- Tab switching: Instant with cached data, refreshes in background
+- Network efficiency: Only fetches what the user views
+- Better UX: Users see content immediately from cache
+
+## Testing Checklist
+
+- Verify each tab loads independently
+- Confirm cached data shows immediately on tab switch
+- Ensure background refresh works without flickering
+- Test pull-to-refresh only reloads active tab
+- Verify loading states per tab work correctly
+
+### To-dos
+
+- [ ] Create src/services/readsService.ts with fetchAllReads function
+- [ ] Update Me.tsx to use reads instead of archive
+- [ ] Update routes from /me/archive to /me/reads
+- [ ] Update meCache.ts to use reads field
+- [ ] Update filter logic to handle actual reading progress
+- [ ] Test all 5 filters and data sources work correctly

CHANGELOG.md

@@ -7,6 +7,40 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.6.20] - 2025-10-15
+
+### Added
+
+- Bookmark filter buttons by content type (articles, videos, images, web links)
+  - Filter bookmarks by their content type on bookmarks sidebar
+  - Filters also available on `/me` page bookmarks tab
+  - Separate filter for external articles with link icon
+  - Multiple filters can be active simultaneously
+- Private Bookmarks section for encrypted legacy bookmarks
+  - Encrypted legacy bookmarks now grouped in separate section
+  - Better organization and clarity for different bookmark types
+
+### Changed
+
+- Bookmark section labels improved for clarity
+  - More descriptive section headings throughout
+  - Better categorization of bookmark types
+- Bookmark filter button styling refined
+  - Reduced whitespace around bookmark filters for cleaner layout
+  - Dramatically reduced whitespace on both sidebar and `/me` page
+- Lock icon removed from individual bookmarks
+  - Encryption status now indicated by section grouping
+  - Cleaner bookmark item appearance
+- External article icon changed to link icon (`faLink`)
+  - More intuitive icon for external content
+
+### Fixed
+
+- Highlight button positioning and visibility
+  - Fixed to viewport for consistent placement
+  - Sticky and always visible when needed
+  - Properly positioned inside reader pane
+
 ## [0.6.19] - 2025-10-15
 
 ### Fixed
@@ -1607,7 +1641,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Optimize relay usage following applesauce-relay best practices
 - Use applesauce-react event models for better profile handling
 
-[Unreleased]: https://github.com/dergigi/boris/compare/v0.6.19...HEAD
+[Unreleased]: https://github.com/dergigi/boris/compare/v0.6.20...HEAD
+[0.6.20]: https://github.com/dergigi/boris/compare/v0.6.19...v0.6.20
 [0.6.19]: https://github.com/dergigi/boris/compare/v0.6.18...v0.6.19
 [0.6.18]: https://github.com/dergigi/boris/compare/v0.6.17...v0.6.18
 [0.6.17]: https://github.com/dergigi/boris/compare/v0.6.16...v0.6.17

src/App.tsx

@@ -112,7 +112,25 @@ function AppRoutes({
         } 
       />
       <Route 
-        path="/me/archive" 
+        path="/me/reads" 
+        element={
+          <Bookmarks 
+            relayPool={relayPool}
+            onLogout={handleLogout}
+          />
+        } 
+      />
+      <Route 
+        path="/me/reads/:filter" 
+        element={
+          <Bookmarks 
+            relayPool={relayPool}
+            onLogout={handleLogout}
+          />
+        } 
+      />
+      <Route 
+        path="/me/links" 
         element={
           <Bookmarks 
             relayPool={relayPool}

src/components/BlogPostCard.tsx

@@ -11,9 +11,10 @@ interface BlogPostCardProps {
   post: BlogPostPreview
   href: string
   level?: 'mine' | 'friends' | 'nostrverse'
+  readingProgress?: number // 0-1 reading progress (optional)
 }
 
-const BlogPostCard: React.FC<BlogPostCardProps> = ({ post, href, level }) => {
+const BlogPostCard: React.FC<BlogPostCardProps> = ({ post, href, level, readingProgress }) => {
   const profile = useEventModel(Models.ProfileModel, [post.author])
   const displayName = profile?.name || profile?.display_name || 
     `${post.author.slice(0, 8)}...${post.author.slice(-4)}`
@@ -23,6 +24,16 @@ const BlogPostCard: React.FC<BlogPostCardProps> = ({ post, href, level }) => {
     addSuffix: true 
   })
 
+  // Calculate progress percentage and determine color (matching readingProgressUtils.ts logic)
+  const progressPercent = readingProgress ? Math.round(readingProgress * 100) : 0
+  let progressColor = '#6366f1' // Default blue (reading)
+  
+  if (readingProgress && readingProgress >= 0.95) {
+    progressColor = '#10b981' // Green (completed)
+  } else if (readingProgress && readingProgress > 0 && readingProgress <= 0.10) {
+    progressColor = 'var(--color-text)' // Neutral text color (started)
+  }
+
   return (
     <Link 
       to={href}
@@ -47,7 +58,37 @@ const BlogPostCard: React.FC<BlogPostCardProps> = ({ post, href, level }) => {
         {post.summary && (
           <p className="blog-post-card-summary">{post.summary}</p>
         )}
-        <div className="blog-post-card-meta">
+        
+        {/* Reading progress indicator - replaces the dividing line */}
+        {readingProgress !== undefined && readingProgress > 0 ? (
+          <div 
+            className="blog-post-reading-progress"
+            style={{
+              height: '3px',
+              width: '100%',
+              background: 'var(--color-border)',
+              overflow: 'hidden',
+              marginTop: '1rem'
+            }}
+          >
+            <div
+              style={{
+                height: '100%',
+                width: `${progressPercent}%`,
+                background: progressColor,
+                transition: 'width 0.3s ease, background 0.3s ease'
+              }}
+            />
+          </div>
+        ) : (
+          <div style={{ 
+            height: '1px', 
+            background: 'var(--color-border)', 
+            marginTop: '1rem' 
+          }} />
+        )}
+        
+        <div className="blog-post-card-meta" style={{ borderTop: 'none', paddingTop: '0.75rem' }}>
           <span className="blog-post-card-author">
             <FontAwesomeIcon icon={faUser} />
             {displayName}

src/components/BookmarkItem.tsx

@@ -19,9 +19,10 @@ interface BookmarkItemProps {
   index: number
   onSelectUrl?: (url: string, bookmark?: { id: string; kind: number; tags: string[][]; pubkey: string }) => void
   viewMode?: ViewMode
+  readingProgress?: number // 0-1 reading progress (optional)
 }
 
-export const BookmarkItem: React.FC<BookmarkItemProps> = ({ bookmark, index, onSelectUrl, viewMode = 'cards' }) => {
+export const BookmarkItem: React.FC<BookmarkItemProps> = ({ bookmark, index, onSelectUrl, viewMode = 'cards', readingProgress }) => {
   const [ogImage, setOgImage] = useState<string | null>(null)
 
   const short = (v: string) => `${v.slice(0, 8)}...${v.slice(-8)}`
@@ -150,7 +151,7 @@ export const BookmarkItem: React.FC<BookmarkItemProps> = ({ bookmark, index, onS
 
   if (viewMode === 'large') {
     const previewImage = articleImage || instantPreview || ogImage
-    return <LargeView {...sharedProps} getIconForUrlType={getIconForUrlType} previewImage={previewImage} />
+    return <LargeView {...sharedProps} getIconForUrlType={getIconForUrlType} previewImage={previewImage} readingProgress={readingProgress} />
   }
 
   return <CardView {...sharedProps} articleImage={articleImage} />

src/components/BookmarkList.tsx

@@ -21,6 +21,7 @@ import { RELAYS } from '../config/relays'
 import { Hooks } from 'applesauce-react'
 import BookmarkFilters, { BookmarkFilterType } from './BookmarkFilters'
 import { filterBookmarksByType } from '../utils/bookmarkTypeClassifier'
+import ReadingProgressFilters, { ReadingProgressFilterType } from './ReadingProgressFilters'
 
 interface BookmarkListProps {
   bookmarks: Bookmark[]
@@ -39,6 +40,8 @@ interface BookmarkListProps {
   relayPool: RelayPool | null
   isMobile?: boolean
   settings?: UserSettings
+  readingPositions?: Map<string, number>
+  markedAsReadIds?: Set<string>
 }
 
 export const BookmarkList: React.FC<BookmarkListProps> = ({
@@ -57,13 +60,16 @@ export const BookmarkList: React.FC<BookmarkListProps> = ({
   loading = false,
   relayPool,
   isMobile = false,
-  settings
+  settings,
+  readingPositions,
+  markedAsReadIds
 }) => {
   const navigate = useNavigate()
   const bookmarksListRef = useRef<HTMLDivElement>(null)
   const friendsColor = settings?.highlightColorFriends || '#f97316'
   const [showAddModal, setShowAddModal] = useState(false)
   const [selectedFilter, setSelectedFilter] = useState<BookmarkFilterType>('all')
+  const [readingProgressFilter, setReadingProgressFilter] = useState<ReadingProgressFilterType>('all')
   const activeAccount = Hooks.useActiveAccount()
 
   const handleSaveBookmark = async (url: string, title?: string, description?: string, tags?: string[]) => {
@@ -90,8 +96,42 @@ export const BookmarkList: React.FC<BookmarkListProps> = ({
   const allIndividualBookmarks = bookmarks.flatMap(b => b.individualBookmarks || [])
     .filter(hasContent)
   
-  // Apply filter
-  const filteredBookmarks = filterBookmarksByType(allIndividualBookmarks, selectedFilter)
+  // Apply type filter
+  const typeFilteredBookmarks = filterBookmarksByType(allIndividualBookmarks, selectedFilter)
+  
+  // Apply reading progress filter (only affects kind:30023 articles)
+  const filteredBookmarks = typeFilteredBookmarks.filter(bookmark => {
+    // Only apply reading progress filter to kind:30023 articles
+    if (bookmark.kind !== 30023) return true
+    
+    // If reading progress filter is 'all', show all articles
+    if (readingProgressFilter === 'all') return true
+    
+    const isMarkedAsRead = markedAsReadIds?.has(bookmark.id)
+    const position = readingPositions?.get(bookmark.id)
+    
+    // Marked-as-read articles are always treated as 100% complete
+    if (isMarkedAsRead) {
+      return readingProgressFilter === 'completed'
+    }
+    
+    switch (readingProgressFilter) {
+      case 'unopened':
+        // No reading progress - never opened
+        return !position || position === 0
+      case 'started':
+        // 0-10% reading progress - opened but not read far
+        return position !== undefined && position > 0 && position <= 0.10
+      case 'reading':
+        // Has some progress but not completed (11% - 94%)
+        return position !== undefined && position > 0.10 && position <= 0.94
+      case 'completed':
+        // 95% or more read
+        return position !== undefined && position >= 0.95
+      default:
+        return true
+    }
+  })
   
   // Separate bookmarks with setName (kind 30003) from regular bookmarks
   const bookmarksWithoutSet = getBookmarksWithoutSet(filteredBookmarks)
@@ -204,6 +244,7 @@ export const BookmarkList: React.FC<BookmarkListProps> = ({
                     index={index} 
                     onSelectUrl={onSelectUrl}
                     viewMode={viewMode}
+                    readingProgress={markedAsReadIds?.has(individualBookmark.id) ? 1.0 : readingPositions?.get(individualBookmark.id)}
                   />
                 ))}
               </div>
@@ -211,6 +252,17 @@ export const BookmarkList: React.FC<BookmarkListProps> = ({
           ))}
         </div>
       )}
+      
+      {/* Reading progress filters - only show if there are kind:30023 articles */}
+      {typeFilteredBookmarks.some(b => b.kind === 30023) && (
+        <div className="reading-progress-filters-wrapper">
+          <ReadingProgressFilters
+            selectedFilter={readingProgressFilter}
+            onFilterChange={setReadingProgressFilter}
+          />
+        </div>
+      )}
+      
       <div className="view-mode-controls">
         <div className="view-mode-left">
           <IconButton

src/components/BookmarkViews/LargeView.tsx

@@ -23,6 +23,7 @@ interface LargeViewProps {
   handleReadNow: (e: React.MouseEvent<HTMLButtonElement>) => void
   articleSummary?: string
   contentTypeIcon: IconDefinition
+  readingProgress?: number // 0-1 reading progress (optional)
 }
 
 export const LargeView: React.FC<LargeViewProps> = ({
@@ -38,11 +39,22 @@ export const LargeView: React.FC<LargeViewProps> = ({
   getAuthorDisplayName,
   handleReadNow,
   articleSummary,
-  contentTypeIcon
+  contentTypeIcon,
+  readingProgress
 }) => {
   const cachedImage = useImageCache(previewImage || undefined)
   const isArticle = bookmark.kind === 30023
   
+  // Calculate progress display (matching readingProgressUtils.ts logic)
+  const progressPercent = readingProgress ? Math.round(readingProgress * 100) : 0
+  let progressColor = '#6366f1' // Default blue (reading)
+  
+  if (readingProgress && readingProgress >= 0.95) {
+    progressColor = '#10b981' // Green (completed)
+  } else if (readingProgress && readingProgress > 0 && readingProgress <= 0.10) {
+    progressColor = 'var(--color-text)' // Neutral text color (started)
+  }
+  
   const triggerOpen = () => handleReadNow({ preventDefault: () => {} } as React.MouseEvent<HTMLButtonElement>)
   const handleKeyDown: React.KeyboardEventHandler<HTMLDivElement> = (e) => {
     if (e.key === 'Enter' || e.key === ' ') {
@@ -92,6 +104,28 @@ export const LargeView: React.FC<LargeViewProps> = ({
           </div>
         )}
         
+        {/* Reading progress indicator for articles - shown only if there's progress */}
+        {isArticle && readingProgress !== undefined && readingProgress > 0 && (
+          <div 
+            style={{
+              height: '3px',
+              width: '100%',
+              background: 'var(--color-border)',
+              overflow: 'hidden',
+              marginTop: '0.75rem'
+            }}
+          >
+            <div
+              style={{
+                height: '100%',
+                width: `${progressPercent}%`,
+                background: progressColor,
+                transition: 'width 0.3s ease, background 0.3s ease'
+              }}
+            />
+          </div>
+        )}
+        
         <div className="large-footer">
           <span className="bookmark-type-large">
             <FontAwesomeIcon icon={contentTypeIcon} className="content-type-icon" />

src/components/Bookmarks.tsx

@@ -52,7 +52,8 @@ const Bookmarks: React.FC<BookmarksProps> = ({ relayPool, onLogout }) => {
   const meTab = location.pathname === '/me' ? 'highlights' : 
                 location.pathname === '/me/highlights' ? 'highlights' :
                 location.pathname === '/me/reading-list' ? 'reading-list' :
-                location.pathname === '/me/archive' ? 'archive' :
+                location.pathname.startsWith('/me/reads') ? 'reads' :
+                location.pathname === '/me/links' ? 'links' :
                 location.pathname === '/me/writings' ? 'writings' : 'highlights'
   
   // Extract tab from profile routes
@@ -161,7 +162,9 @@ const Bookmarks: React.FC<BookmarksProps> = ({ relayPool, onLogout }) => {
     isRefreshing,
     lastFetchTime,
     handleFetchHighlights,
-    handleRefreshAll
+    handleRefreshAll,
+    readingPositions,
+    markedAsReadIds
   } = useBookmarksData({
     relayPool,
     activeAccount,
@@ -170,7 +173,8 @@ const Bookmarks: React.FC<BookmarksProps> = ({ relayPool, onLogout }) => {
     externalUrl,
     currentArticleCoordinate,
     currentArticleEventId,
-    settings
+    settings,
+    eventStore
   })
 
   const {
@@ -312,6 +316,8 @@ const Bookmarks: React.FC<BookmarksProps> = ({ relayPool, onLogout }) => {
       highlightButtonRef={highlightButtonRef}
       onCreateHighlight={handleCreateHighlight}
       hasActiveAccount={!!(activeAccount && relayPool)}
+      readingPositions={readingPositions}
+      markedAsReadIds={markedAsReadIds}
       explore={showExplore ? (
         relayPool ? <Explore relayPool={relayPool} eventStore={eventStore} settings={settings} activeTab={exploreTab} /> : null
       ) : undefined}

src/components/ContentPanel.tsx

@@ -1,4 +1,4 @@
-import React, { useMemo, useState, useEffect, useRef } from 'react'
+import React, { useMemo, useState, useEffect, useRef, useCallback } from 'react'
 import ReactPlayer from 'react-player'
 import ReactMarkdown from 'react-markdown'
 import remarkGfm from 'remark-gfm'
@@ -36,6 +36,13 @@ import { classifyUrl } from '../utils/helpers'
 import { buildNativeVideoUrl } from '../utils/videoHelpers'
 import { useReadingPosition } from '../hooks/useReadingPosition'
 import { ReadingProgressIndicator } from './ReadingProgressIndicator'
+import { EventFactory } from 'applesauce-factory'
+import { Hooks } from 'applesauce-react'
+import { 
+  generateArticleIdentifier, 
+  loadReadingPosition, 
+  saveReadingPosition 
+} from '../services/readingPositionService'
 
 interface ContentPanelProps {
   loading: boolean
@@ -129,17 +136,200 @@ const ContentPanel: React.FC<ContentPanelProps> = ({
     onClearSelection
   })
 
+  // Get event store for reading position service
+  const eventStore = Hooks.useEventStore()
+  
   // Reading position tracking - only for text content, not videos
   const isTextContent = !loading && !!(markdown || html) && !selectedUrl?.includes('youtube') && !selectedUrl?.includes('vimeo')
-  const { isReadingComplete, progressPercentage } = useReadingPosition({
+  
+  // Generate article identifier for saving/loading position
+  const articleIdentifier = useMemo(() => {
+    if (!selectedUrl) return null
+    return generateArticleIdentifier(selectedUrl)
+  }, [selectedUrl])
+
+  // Callback to save reading position
+  const handleSavePosition = useCallback(async (position: number) => {
+    if (!activeAccount || !relayPool || !eventStore || !articleIdentifier) {
+      console.log('⏭️ [ContentPanel] Skipping save - missing requirements:', {
+        hasAccount: !!activeAccount,
+        hasRelayPool: !!relayPool,
+        hasEventStore: !!eventStore,
+        hasIdentifier: !!articleIdentifier
+      })
+      return
+    }
+    if (!settings?.syncReadingPosition) {
+      console.log('⏭️ [ContentPanel] Sync disabled in settings')
+      return
+    }
+
+    console.log('💾 [ContentPanel] Saving position:', Math.round(position * 100) + '%', 'for article:', selectedUrl?.slice(0, 50))
+
+    try {
+      const factory = new EventFactory({ signer: activeAccount })
+      await saveReadingPosition(
+        relayPool,
+        eventStore,
+        factory,
+        articleIdentifier,
+        {
+          position,
+          timestamp: Math.floor(Date.now() / 1000),
+          scrollTop: window.pageYOffset || document.documentElement.scrollTop
+        }
+      )
+    } catch (error) {
+      console.error('❌ [ContentPanel] Failed to save reading position:', error)
+    }
+  }, [activeAccount, relayPool, eventStore, articleIdentifier, settings?.syncReadingPosition, selectedUrl])
+
+  const { isReadingComplete, progressPercentage, saveNow } = useReadingPosition({
     enabled: isTextContent,
-    onReadingComplete: () => {
-      // Optional: Auto-mark as read when reading is complete
-      if (activeAccount && !isMarkedAsRead) {
-        // Could trigger auto-mark as read here if desired
+    syncEnabled: settings?.syncReadingPosition,
+    onSave: handleSavePosition
+  })
+
+  // Determine if we're on a nostr-native article (/a/) or external URL (/r/)
+  const isNostrArticle = selectedUrl && selectedUrl.startsWith('nostr:')
+
+  // Define handleMarkAsRead with useCallback to use in auto-mark effect
+  const handleMarkAsRead = useCallback(() => {
+    if (!activeAccount || !relayPool || isMarkedAsRead) {
+      return
+    }
+
+    // Instantly update UI with checkmark animation
+    setIsMarkedAsRead(true)
+    setShowCheckAnimation(true)
+
+    // Reset animation after it completes (2.5s for full fancy animation)
+    setTimeout(() => {
+      setShowCheckAnimation(false)
+    }, 2500)
+
+    // Fire-and-forget: publish in background without blocking UI
+    ;(async () => {
+      try {
+        if (isNostrArticle && currentArticle) {
+          await createEventReaction(
+            currentArticle.id,
+            currentArticle.pubkey,
+            currentArticle.kind,
+            activeAccount,
+            relayPool
+          )
+          console.log('✅ Marked nostr article as read')
+        } else if (selectedUrl) {
+          await createWebsiteReaction(
+            selectedUrl,
+            activeAccount,
+            relayPool
+          )
+          console.log('✅ Marked website as read')
+        }
+      } catch (error) {
+        console.error('Failed to mark as read:', error)
+        // Revert UI state on error
+        setIsMarkedAsRead(false)
+      }
+    })()
+  }, [activeAccount, relayPool, isMarkedAsRead, isNostrArticle, currentArticle, selectedUrl])
+
+  // Auto-mark as read when reaching 100% for 2 seconds
+  useEffect(() => {
+    if (!settings?.autoMarkAsReadAt100 || isMarkedAsRead || !activeAccount || !relayPool) {
+      return
+    }
+
+    // Only trigger when progress is exactly 100%
+    if (progressPercentage === 100) {
+      console.log('📍 [ContentPanel] Progress at 100%, starting 2-second timer for auto-mark')
+      
+      const timer = setTimeout(() => {
+        console.log('✅ [ContentPanel] Auto-marking as read after 2 seconds at 100%')
+        handleMarkAsRead()
+      }, 2000)
+
+      return () => {
+        console.log('⏹️ [ContentPanel] Canceling auto-mark timer (progress changed or unmounting)')
+        clearTimeout(timer)
       }
     }
-  })
+  }, [progressPercentage, settings?.autoMarkAsReadAt100, isMarkedAsRead, activeAccount, relayPool, handleMarkAsRead])
+
+  // Load saved reading position when article loads
+  useEffect(() => {
+    if (!isTextContent || !activeAccount || !relayPool || !eventStore || !articleIdentifier) {
+      console.log('⏭️ [ContentPanel] Skipping position restore - missing requirements:', {
+        isTextContent,
+        hasAccount: !!activeAccount,
+        hasRelayPool: !!relayPool,
+        hasEventStore: !!eventStore,
+        hasIdentifier: !!articleIdentifier
+      })
+      return
+    }
+    if (!settings?.syncReadingPosition) {
+      console.log('⏭️ [ContentPanel] Sync disabled - not restoring position')
+      return
+    }
+
+    console.log('📖 [ContentPanel] Loading position for article:', selectedUrl?.slice(0, 50))
+
+    const loadPosition = async () => {
+      try {
+        const savedPosition = await loadReadingPosition(
+          relayPool,
+          eventStore,
+          activeAccount.pubkey,
+          articleIdentifier
+        )
+
+        if (savedPosition && savedPosition.position > 0.05 && savedPosition.position < 1) {
+          console.log('🎯 [ContentPanel] Restoring position:', Math.round(savedPosition.position * 100) + '%')
+          
+          // Only auto-scroll if the setting is enabled (default: true)
+          if (settings?.autoScrollToPosition !== false) {
+            // Wait for content to be fully rendered before scrolling
+            setTimeout(() => {
+              const documentHeight = document.documentElement.scrollHeight
+              const windowHeight = window.innerHeight
+              const scrollTop = savedPosition.position * (documentHeight - windowHeight)
+              
+              window.scrollTo({
+                top: scrollTop,
+                behavior: 'smooth'
+              })
+              
+              console.log('✅ [ContentPanel] Restored to position:', Math.round(savedPosition.position * 100) + '%', 'scrollTop:', scrollTop)
+            }, 500) // Give content time to render
+          } else {
+            console.log('⏭️ [ContentPanel] Auto-scroll disabled in settings')
+          }
+        } else if (savedPosition) {
+          if (savedPosition.position === 1) {
+            console.log('✅ [ContentPanel] Article completed (100%), starting from top')
+          } else {
+            console.log('⏭️ [ContentPanel] Position too early (<5%):', Math.round(savedPosition.position * 100) + '%')
+          }
+        }
+      } catch (error) {
+        console.error('❌ [ContentPanel] Failed to load reading position:', error)
+      }
+    }
+
+    loadPosition()
+  }, [isTextContent, activeAccount, relayPool, eventStore, articleIdentifier, settings?.syncReadingPosition, settings?.autoScrollToPosition, selectedUrl])
+
+  // Save position before unmounting or changing article
+  useEffect(() => {
+    return () => {
+      if (saveNow) {
+        saveNow()
+      }
+    }
+  }, [saveNow, selectedUrl])
 
   // Close menu when clicking outside
   useEffect(() => {
@@ -202,8 +392,6 @@ const ContentPanel: React.FC<ContentPanelProps> = ({
 
   const hasHighlights = relevantHighlights.length > 0
 
-  // Determine if we're on a nostr-native article (/a/) or external URL (/r/)
-  const isNostrArticle = selectedUrl && selectedUrl.startsWith('nostr:')
   const isExternalVideo = !isNostrArticle && !!selectedUrl && ['youtube', 'video'].includes(classifyUrl(selectedUrl).type)
 
   // Track external video duration (in seconds) for display in header
@@ -472,48 +660,6 @@ const ContentPanel: React.FC<ContentPanelProps> = ({
 
     checkReadStatus()
   }, [selectedUrl, currentArticle, activeAccount, relayPool, isNostrArticle])
-  
-  const handleMarkAsRead = () => {
-    if (!activeAccount || !relayPool || isMarkedAsRead) {
-      return
-    }
-
-    // Instantly update UI with checkmark animation
-    setIsMarkedAsRead(true)
-    setShowCheckAnimation(true)
-
-    // Reset animation after it completes
-    setTimeout(() => {
-      setShowCheckAnimation(false)
-    }, 600)
-
-    // Fire-and-forget: publish in background without blocking UI
-    ;(async () => {
-      try {
-        if (isNostrArticle && currentArticle) {
-          await createEventReaction(
-            currentArticle.id,
-            currentArticle.pubkey,
-            currentArticle.kind,
-            activeAccount,
-            relayPool
-          )
-          console.log('✅ Marked nostr article as read')
-        } else if (selectedUrl) {
-          await createWebsiteReaction(
-            selectedUrl,
-            activeAccount,
-            relayPool
-          )
-          console.log('✅ Marked website as read')
-        }
-      } catch (error) {
-        console.error('Failed to mark as read:', error)
-        // Revert UI state on error
-        setIsMarkedAsRead(false)
-      }
-    })()
-  }
 
   if (!selectedUrl) {
     return (

src/components/Explore.tsx

@@ -22,6 +22,8 @@ import { usePullToRefresh } from 'use-pull-to-refresh'
 import RefreshIndicator from './RefreshIndicator'
 import { classifyHighlights } from '../utils/highlightClassification'
 import { HighlightVisibility } from './HighlightsPanel'
+import { loadReadingPosition, generateArticleIdentifier } from '../services/readingPositionService'
+import { fetchReadArticles } from '../services/libraryService'
 
 interface ExploreProps {
   relayPool: RelayPool
@@ -41,6 +43,8 @@ const Explore: React.FC<ExploreProps> = ({ relayPool, eventStore, settings, acti
   const [followedPubkeys, setFollowedPubkeys] = useState<Set<string>>(new Set())
   const [loading, setLoading] = useState(true)
   const [refreshTrigger, setRefreshTrigger] = useState(0)
+  const [readingPositions, setReadingPositions] = useState<Map<string, number>>(new Map())
+  const [markedAsReadIds, setMarkedAsReadIds] = useState<Set<string>>(new Set())
   
   // Visibility filters (defaults from settings, or friends only)
   const [visibility, setVisibility] = useState<HighlightVisibility>({
@@ -213,6 +217,88 @@ const Explore: React.FC<ExploreProps> = ({ relayPool, eventStore, settings, acti
     loadData()
   }, [relayPool, activeAccount, refreshTrigger, eventStore, settings])
 
+  // Fetch marked-as-read articles
+  useEffect(() => {
+    const loadMarkedAsRead = async () => {
+      if (!activeAccount || !eventStore) {
+        return
+      }
+
+      try {
+        const readArticles = await fetchReadArticles(relayPool, activeAccount.pubkey)
+        
+        // Create a set of article IDs that are marked as read
+        const markedArticleIds = new Set<string>()
+        
+        // For each read article, add both event ID and coordinate format
+        for (const readArticle of readArticles) {
+          // Add the event ID directly
+          markedArticleIds.add(readArticle.id)
+          
+          // For nostr-native articles (kind:7 reactions), also add the coordinate format
+          if (readArticle.eventId && readArticle.eventAuthor && readArticle.eventKind) {
+            // Try to get the event from the eventStore to find the 'd' tag
+            const event = eventStore.getEvent(readArticle.eventId)
+            if (event) {
+              const dTag = event.tags?.find((t: string[]) => t[0] === 'd')?.[1] || ''
+              const coordinate = `${event.kind}:${event.pubkey}:${dTag}`
+              markedArticleIds.add(coordinate)
+            }
+          }
+        }
+        
+        setMarkedAsReadIds(markedArticleIds)
+      } catch (error) {
+        console.warn('⚠️ [Explore] Failed to load marked-as-read articles:', error)
+      }
+    }
+
+    loadMarkedAsRead()
+  }, [relayPool, activeAccount, eventStore])
+
+  // Load reading positions for blog posts
+  useEffect(() => {
+    const loadPositions = async () => {
+      if (!activeAccount || !eventStore || blogPosts.length === 0 || !settings?.syncReadingPosition) {
+        return
+      }
+
+      const positions = new Map<string, number>()
+
+      await Promise.all(
+        blogPosts.map(async (post) => {
+          try {
+            const dTag = post.event.tags.find(t => t[0] === 'd')?.[1] || ''
+            const naddr = nip19.naddrEncode({
+              kind: 30023,
+              pubkey: post.author,
+              identifier: dTag
+            })
+            const articleUrl = `nostr:${naddr}`
+            const identifier = generateArticleIdentifier(articleUrl)
+
+            const savedPosition = await loadReadingPosition(
+              relayPool,
+              eventStore,
+              activeAccount.pubkey,
+              identifier
+            )
+
+            if (savedPosition && savedPosition.position > 0) {
+              positions.set(post.event.id, savedPosition.position)
+            }
+          } catch (error) {
+            console.warn('⚠️ [Explore] Failed to load reading position for post:', error)
+          }
+        })
+      )
+
+      setReadingPositions(positions)
+    }
+
+    loadPositions()
+  }, [blogPosts, activeAccount, relayPool, eventStore, settings?.syncReadingPosition])
+
   // Pull-to-refresh
   const { isRefreshing, pullPosition } = usePullToRefresh({
     onRefresh: () => {
@@ -237,35 +323,6 @@ const Explore: React.FC<ExploreProps> = ({ relayPool, eventStore, settings, acti
     return `/a/${naddr}`
   }
 
-  const handleHighlightClick = (highlightId: string) => {
-    const highlight = highlights.find(h => h.id === highlightId)
-    if (!highlight) return
-
-    // For nostr-native articles
-    if (highlight.eventReference) {
-      // Convert eventReference to naddr
-      if (highlight.eventReference.includes(':')) {
-        const parts = highlight.eventReference.split(':')
-        const kind = parseInt(parts[0])
-        const pubkey = parts[1]
-        const identifier = parts[2] || ''
-        
-        const naddr = nip19.naddrEncode({
-          kind,
-          pubkey,
-          identifier
-        })
-        navigate(`/a/${naddr}`, { state: { highlightId, openHighlights: true } })
-      } else {
-        // Already an naddr
-        navigate(`/a/${highlight.eventReference}`, { state: { highlightId, openHighlights: true } })
-      }
-    } 
-    // For web URLs
-    else if (highlight.urlReference) {
-      navigate(`/r/${encodeURIComponent(highlight.urlReference)}`, { state: { highlightId, openHighlights: true } })
-    }
-  }
 
   // Classify highlights with levels based on user context and apply visibility filters
   const classifiedHighlights = useMemo(() => {
@@ -331,6 +388,7 @@ const Explore: React.FC<ExploreProps> = ({ relayPool, eventStore, settings, acti
                 post={post}
                 href={getPostUrl(post)}
                 level={post.level}
+                readingProgress={markedAsReadIds.has(post.event.id) ? 1.0 : readingPositions.get(post.event.id)}
               />
             ))}
           </div>
@@ -357,7 +415,6 @@ const Explore: React.FC<ExploreProps> = ({ relayPool, eventStore, settings, acti
                 key={highlight.id}
                 highlight={highlight}
                 relayPool={relayPool}
-                onHighlightClick={handleHighlightClick}
               />
             ))}
           </div>

src/components/HighlightItem.tsx

@@ -16,6 +16,7 @@ import { createDeletionRequest } from '../services/deletionService'
 import { getNostrUrl } from '../config/nostrGateways'
 import CompactButton from './CompactButton'
 import { HighlightCitation } from './HighlightCitation'
+import { useNavigate } from 'react-router-dom'
 
 // Helper to detect if a URL is an image
 const isImageUrl = (url: string): boolean => {
@@ -206,6 +207,7 @@ export const HighlightItem: React.FC<HighlightItemProps> = ({
   const [showMenu, setShowMenu] = useState(false)
   
   const activeAccount = Hooks.useActiveAccount()
+  const navigate = useNavigate()
   
   // Resolve the profile of the user who made the highlight
   const profile = useEventModel(Models.ProfileModel, [highlight.pubkey])
@@ -274,8 +276,34 @@ export const HighlightItem: React.FC<HighlightItemProps> = ({
   }, [showMenu, showDeleteConfirm])
   
   const handleItemClick = () => {
+    // If onHighlightClick is provided, use it (legacy behavior)
     if (onHighlightClick) {
       onHighlightClick(highlight.id)
+      return
+    }
+    
+    // Otherwise, navigate to the article that this highlight references
+    if (highlight.eventReference) {
+      // Parse the event reference - it can be an event ID or article coordinate (kind:pubkey:identifier)
+      const parts = highlight.eventReference.split(':')
+      
+      // If it's an article coordinate (3 parts) and kind is 30023, navigate to it
+      if (parts.length === 3) {
+        const [kind, pubkey, identifier] = parts
+        
+        if (kind === '30023') {
+          // Encode as naddr and navigate
+          const naddr = nip19.naddrEncode({
+            kind: 30023,
+            pubkey,
+            identifier
+          })
+          navigate(`/a/${naddr}`)
+        }
+      }
+    } else if (highlight.urlReference) {
+      // Navigate to external URL
+      navigate(`/r/${encodeURIComponent(highlight.urlReference)}`)
     }
   }
   
@@ -473,7 +501,7 @@ export const HighlightItem: React.FC<HighlightItemProps> = ({
       className={`highlight-item ${isSelected ? 'selected' : ''} ${highlight.level ? `level-${highlight.level}` : ''}`} 
       data-highlight-id={highlight.id}
       onClick={handleItemClick}
-      style={{ cursor: onHighlightClick ? 'pointer' : 'default' }}
+      style={{ cursor: (onHighlightClick || highlight.eventReference || highlight.urlReference) ? 'pointer' : 'default' }}
     >
       <div className="highlight-header">
         <CompactButton

src/components/Me.tsx

@@ -1,16 +1,17 @@
 import React, { useState, useEffect } from 'react'
 import { FontAwesomeIcon } from '@fortawesome/react-fontawesome'
-import { faSpinner, faHighlighter, faBookmark, faList, faThLarge, faImage, faPenToSquare } from '@fortawesome/free-solid-svg-icons'
+import { faHighlighter, faBookmark, faList, faThLarge, faImage, faPenToSquare, faLink } from '@fortawesome/free-solid-svg-icons'
 import { Hooks } from 'applesauce-react'
 import { BlogPostSkeleton, HighlightSkeleton, BookmarkSkeleton } from './Skeletons'
 import { RelayPool } from 'applesauce-relay'
 import { nip19 } from 'nostr-tools'
-import { useNavigate } from 'react-router-dom'
+import { useNavigate, useParams } from 'react-router-dom'
 import { Highlight } from '../types/highlights'
 import { HighlightItem } from './HighlightItem'
 import { fetchHighlights } from '../services/highlightService'
 import { fetchBookmarks } from '../services/bookmarkService'
-import { fetchReadArticlesWithData } from '../services/libraryService'
+import { fetchAllReads, ReadItem } from '../services/readsService'
+import { fetchLinks } from '../services/linksService'
 import { BlogPostPreview, fetchBlogPostsFromAuthors } from '../services/exploreService'
 import { RELAYS } from '../config/relays'
 import { Bookmark, IndividualBookmark } from '../types/bookmarks'
@@ -19,13 +20,18 @@ import BlogPostCard from './BlogPostCard'
 import { BookmarkItem } from './BookmarkItem'
 import IconButton from './IconButton'
 import { ViewMode } from './Bookmarks'
-import { getCachedMeData, setCachedMeData, updateCachedHighlights } from '../services/meCache'
+import { getCachedMeData, updateCachedHighlights } from '../services/meCache'
 import { faBooks } from '../icons/customIcons'
 import { usePullToRefresh } from 'use-pull-to-refresh'
 import RefreshIndicator from './RefreshIndicator'
 import { groupIndividualBookmarks, hasContent } from '../utils/bookmarkUtils'
 import BookmarkFilters, { BookmarkFilterType } from './BookmarkFilters'
 import { filterBookmarksByType } from '../utils/bookmarkTypeClassifier'
+import ReadingProgressFilters, { ReadingProgressFilterType } from './ReadingProgressFilters'
+import { filterByReadingProgress } from '../utils/readingProgressUtils'
+import { deriveReadsFromBookmarks } from '../utils/readsFromBookmarks'
+import { deriveLinksFromBookmarks } from '../utils/linksFromBookmarks'
+import { mergeReadItem } from '../utils/readItemMerge'
 
 interface MeProps {
   relayPool: RelayPool
@@ -33,11 +39,15 @@ interface MeProps {
   pubkey?: string // Optional pubkey for viewing other users' profiles
 }
 
-type TabType = 'highlights' | 'reading-list' | 'archive' | 'writings'
+type TabType = 'highlights' | 'reading-list' | 'reads' | 'links' | 'writings'
+
+// Valid reading progress filters
+const VALID_FILTERS: ReadingProgressFilterType[] = ['all', 'unopened', 'started', 'reading', 'completed']
 
 const Me: React.FC<MeProps> = ({ relayPool, activeTab: propActiveTab, pubkey: propPubkey }) => {
   const activeAccount = Hooks.useActiveAccount()
   const navigate = useNavigate()
+  const { filter: urlFilter } = useParams<{ filter?: string }>()
   const [activeTab, setActiveTab] = useState<TabType>(propActiveTab || 'highlights')
   
   // Use provided pubkey or fall back to active account
@@ -45,12 +55,22 @@ const Me: React.FC<MeProps> = ({ relayPool, activeTab: propActiveTab, pubkey: pr
   const isOwnProfile = !propPubkey || (activeAccount?.pubkey === propPubkey)
   const [highlights, setHighlights] = useState<Highlight[]>([])
   const [bookmarks, setBookmarks] = useState<Bookmark[]>([])
-  const [readArticles, setReadArticles] = useState<BlogPostPreview[]>([])
+  const [reads, setReads] = useState<ReadItem[]>([])
+  const [, setReadsMap] = useState<Map<string, ReadItem>>(new Map())
+  const [links, setLinks] = useState<ReadItem[]>([])
+  const [, setLinksMap] = useState<Map<string, ReadItem>>(new Map())
   const [writings, setWritings] = useState<BlogPostPreview[]>([])
   const [loading, setLoading] = useState(true)
+  const [loadedTabs, setLoadedTabs] = useState<Set<TabType>>(new Set())
   const [viewMode, setViewMode] = useState<ViewMode>('cards')
   const [refreshTrigger, setRefreshTrigger] = useState(0)
   const [bookmarkFilter, setBookmarkFilter] = useState<BookmarkFilterType>('all')
+  
+  // Initialize reading progress filter from URL param
+  const initialFilter = urlFilter && VALID_FILTERS.includes(urlFilter as ReadingProgressFilterType) 
+    ? (urlFilter as ReadingProgressFilterType) 
+    : 'all'
+  const [readingProgressFilter, setReadingProgressFilter] = useState<ReadingProgressFilterType>(initialFilter)
 
   // Update local state when prop changes
   useEffect(() => {
@@ -59,72 +79,246 @@ const Me: React.FC<MeProps> = ({ relayPool, activeTab: propActiveTab, pubkey: pr
     }
   }, [propActiveTab])
 
+  // Sync filter state with URL changes
   useEffect(() => {
-    const loadData = async () => {
-      if (!viewingPubkey) {
-        setLoading(false)
-        return
+    const filterFromUrl = urlFilter && VALID_FILTERS.includes(urlFilter as ReadingProgressFilterType) 
+      ? (urlFilter as ReadingProgressFilterType) 
+      : 'all'
+    setReadingProgressFilter(filterFromUrl)
+  }, [urlFilter])
+
+  // Handler to change reading progress filter and update URL
+  const handleReadingProgressFilterChange = (filter: ReadingProgressFilterType) => {
+    setReadingProgressFilter(filter)
+    if (activeTab === 'reads') {
+      if (filter === 'all') {
+        navigate('/me/reads', { replace: true })
+      } else {
+        navigate(`/me/reads/${filter}`, { replace: true })
+      }
+    }
+  }
+
+  // Tab-specific loading functions
+  const loadHighlightsTab = async () => {
+    if (!viewingPubkey) return
+    
+    // Only show loading skeleton if tab hasn't been loaded yet
+    const hasBeenLoaded = loadedTabs.has('highlights')
+    
+    try {
+      if (!hasBeenLoaded) setLoading(true)
+      const userHighlights = await fetchHighlights(relayPool, viewingPubkey)
+      setHighlights(userHighlights)
+      setLoadedTabs(prev => new Set(prev).add('highlights'))
+    } catch (err) {
+      console.error('Failed to load highlights:', err)
+    } finally {
+      if (!hasBeenLoaded) setLoading(false)
+    }
+  }
+
+  const loadWritingsTab = async () => {
+    if (!viewingPubkey) return
+    
+    const hasBeenLoaded = loadedTabs.has('writings')
+    
+    try {
+      if (!hasBeenLoaded) setLoading(true)
+      const userWritings = await fetchBlogPostsFromAuthors(relayPool, [viewingPubkey], RELAYS)
+      setWritings(userWritings)
+      setLoadedTabs(prev => new Set(prev).add('writings'))
+    } catch (err) {
+      console.error('Failed to load writings:', err)
+    } finally {
+      if (!hasBeenLoaded) setLoading(false)
+    }
+  }
+
+  const loadReadingListTab = async () => {
+    if (!viewingPubkey || !isOwnProfile || !activeAccount) return
+    
+    const hasBeenLoaded = loadedTabs.has('reading-list')
+    
+    try {
+      if (!hasBeenLoaded) setLoading(true)
+      try {
+        await fetchBookmarks(relayPool, activeAccount, (newBookmarks) => {
+          setBookmarks(newBookmarks)
+        })
+      } catch (err) {
+        console.warn('Failed to load bookmarks:', err)
+        setBookmarks([])
+      }
+      setLoadedTabs(prev => new Set(prev).add('reading-list'))
+    } catch (err) {
+      console.error('Failed to load reading list:', err)
+    } finally {
+      if (!hasBeenLoaded) setLoading(false)
+    }
+  }
+
+  const loadReadsTab = async () => {
+    if (!viewingPubkey || !isOwnProfile || !activeAccount) return
+    
+    const hasBeenLoaded = loadedTabs.has('reads')
+    
+    try {
+      if (!hasBeenLoaded) setLoading(true)
+      
+      // Ensure bookmarks are loaded
+      let fetchedBookmarks: Bookmark[] = bookmarks
+      if (bookmarks.length === 0) {
+        try {
+          await fetchBookmarks(relayPool, activeAccount, (newBookmarks) => {
+            fetchedBookmarks = newBookmarks
+            setBookmarks(newBookmarks)
+          })
+        } catch (err) {
+          console.warn('Failed to load bookmarks:', err)
+          fetchedBookmarks = []
+        }
       }
 
-      try {
-        setLoading(true)
-
-        // Seed from cache if available to avoid empty flash (own profile only)
-        if (isOwnProfile) {
-          const cached = getCachedMeData(viewingPubkey)
-          if (cached) {
-            setHighlights(cached.highlights)
-            setBookmarks(cached.bookmarks)
-            setReadArticles(cached.readArticles)
+      // Derive reads from bookmarks immediately
+      const initialReads = deriveReadsFromBookmarks(fetchedBookmarks)
+      const initialMap = new Map(initialReads.map(item => [item.id, item]))
+      setReadsMap(initialMap)
+      setReads(initialReads)
+      setLoadedTabs(prev => new Set(prev).add('reads'))
+      if (!hasBeenLoaded) setLoading(false)
+      
+      // Background enrichment: merge reading progress and mark-as-read
+      // Only update items that are already in our map
+      fetchAllReads(relayPool, viewingPubkey, fetchedBookmarks, (item) => {
+        console.log('📈 [Reads] Enrichment item received:', {
+          id: item.id.slice(0, 20) + '...',
+          progress: item.readingProgress,
+          hasProgress: item.readingProgress !== undefined && item.readingProgress > 0
+        })
+        
+        setReadsMap(prevMap => {
+          // Only update if item exists in our current map
+          if (!prevMap.has(item.id)) {
+            console.log('⚠️ [Reads] Item not in map, skipping:', item.id.slice(0, 20) + '...')
+            return prevMap
           }
-        }
-
-        // Fetch highlights and writings (public data)
-        const [userHighlights, userWritings] = await Promise.all([
-          fetchHighlights(relayPool, viewingPubkey),
-          fetchBlogPostsFromAuthors(relayPool, [viewingPubkey], RELAYS)
-        ])
-
-        setHighlights(userHighlights)
-        setWritings(userWritings)
-
-        // Only fetch private data for own profile
-        if (isOwnProfile && activeAccount) {
-          const userReadArticles = await fetchReadArticlesWithData(relayPool, viewingPubkey)
-          setReadArticles(userReadArticles)
-
-          // Fetch bookmarks using callback pattern
-          let fetchedBookmarks: Bookmark[] = []
-          try {
-            await fetchBookmarks(relayPool, activeAccount, (newBookmarks) => {
-              fetchedBookmarks = newBookmarks
-              setBookmarks(newBookmarks)
-            })
-          } catch (err) {
-            console.warn('Failed to load bookmarks:', err)
-            setBookmarks([])
+          
+          const newMap = new Map(prevMap)
+          const merged = mergeReadItem(newMap, item)
+          if (merged) {
+            console.log('✅ [Reads] Merged progress:', item.id.slice(0, 20) + '...', item.readingProgress)
+            // Update reads array after map is updated
+            setReads(Array.from(newMap.values()))
+            return newMap
           }
+          return prevMap
+        })
+      }).catch(err => console.warn('Failed to enrich reads:', err))
+      
+    } catch (err) {
+      console.error('Failed to load reads:', err)
+      if (!hasBeenLoaded) setLoading(false)
+    }
+  }
 
-          // Update cache with all fetched data
-          setCachedMeData(viewingPubkey, userHighlights, fetchedBookmarks, userReadArticles)
-        } else {
-          setBookmarks([])
-          setReadArticles([])
+  const loadLinksTab = async () => {
+    if (!viewingPubkey || !isOwnProfile || !activeAccount) return
+    
+    const hasBeenLoaded = loadedTabs.has('links')
+    
+    try {
+      if (!hasBeenLoaded) setLoading(true)
+      
+      // Ensure bookmarks are loaded
+      let fetchedBookmarks: Bookmark[] = bookmarks
+      if (bookmarks.length === 0) {
+        try {
+          await fetchBookmarks(relayPool, activeAccount, (newBookmarks) => {
+            fetchedBookmarks = newBookmarks
+            setBookmarks(newBookmarks)
+          })
+        } catch (err) {
+          console.warn('Failed to load bookmarks:', err)
+          fetchedBookmarks = []
         }
-      } catch (err) {
-        console.error('Failed to load data:', err)
-        // No blocking error - user can pull-to-refresh
-      } finally {
-        setLoading(false)
+      }
+
+      // Derive links from bookmarks immediately
+      const initialLinks = deriveLinksFromBookmarks(fetchedBookmarks)
+      const initialMap = new Map(initialLinks.map(item => [item.id, item]))
+      setLinksMap(initialMap)
+      setLinks(initialLinks)
+      setLoadedTabs(prev => new Set(prev).add('links'))
+      if (!hasBeenLoaded) setLoading(false)
+      
+      // Background enrichment: merge reading progress and mark-as-read
+      // Only update items that are already in our map
+      fetchLinks(relayPool, viewingPubkey, (item) => {
+        setLinksMap(prevMap => {
+          // Only update if item exists in our current map
+          if (!prevMap.has(item.id)) return prevMap
+          
+          const newMap = new Map(prevMap)
+          if (mergeReadItem(newMap, item)) {
+            // Update links array after map is updated
+            setLinks(Array.from(newMap.values()))
+            return newMap
+          }
+          return prevMap
+        })
+      }).catch(err => console.warn('Failed to enrich links:', err))
+      
+    } catch (err) {
+      console.error('Failed to load links:', err)
+      if (!hasBeenLoaded) setLoading(false)
+    }
+  }
+
+  // Load active tab data
+  useEffect(() => {
+    if (!viewingPubkey || !activeTab) {
+      setLoading(false)
+      return
+    }
+
+    // Load cached data immediately if available
+    if (isOwnProfile) {
+      const cached = getCachedMeData(viewingPubkey)
+      if (cached) {
+        setHighlights(cached.highlights)
+        setBookmarks(cached.bookmarks)
+        setReads(cached.reads || [])
+        setLinks(cached.links || [])
       }
     }
 
-    loadData()
-  }, [relayPool, viewingPubkey, isOwnProfile, activeAccount, refreshTrigger])
+    // Load data for active tab (refresh in background if already loaded)
+    switch (activeTab) {
+      case 'highlights':
+        loadHighlightsTab()
+        break
+      case 'writings':
+        loadWritingsTab()
+        break
+      case 'reading-list':
+        loadReadingListTab()
+        break
+      case 'reads':
+        loadReadsTab()
+        break
+      case 'links':
+        loadLinksTab()
+        break
+    }
+    // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, [activeTab, viewingPubkey, refreshTrigger])
 
-  // Pull-to-refresh
+
+  // Pull-to-refresh - reload active tab without clearing state
   const { isRefreshing, pullPosition } = usePullToRefresh({
     onRefresh: () => {
+      // Just trigger refresh - loaders will merge new data
       setRefreshTrigger(prev => prev + 1)
     },
     maximumPullLength: 240,
@@ -153,6 +347,49 @@ const Me: React.FC<MeProps> = ({ relayPool, activeTab: propActiveTab, pubkey: pr
     return `/a/${naddr}`
   }
 
+  const getReadItemUrl = (item: ReadItem) => {
+    if (item.type === 'article') {
+      // ID is already in naddr format
+      return `/a/${item.id}`
+    } else if (item.url) {
+      return `/r/${encodeURIComponent(item.url)}`
+    }
+    return '#'
+  }
+
+  const convertReadItemToBlogPostPreview = (item: ReadItem): BlogPostPreview => {
+    if (item.event) {
+      return {
+        event: item.event,
+        title: item.title || 'Untitled',
+        summary: item.summary,
+        image: item.image,
+        published: item.published,
+        author: item.author || item.event.pubkey
+      }
+    }
+    
+    // Create a mock event for external URLs
+    const mockEvent = {
+      id: item.id,
+      pubkey: item.author || '',
+      created_at: item.readingTimestamp || Math.floor(Date.now() / 1000),
+      kind: 1,
+      tags: [] as string[][],
+      content: item.title || item.url || 'Untitled',
+      sig: ''
+    } as const
+    
+    return {
+      event: mockEvent as unknown as import('nostr-tools').NostrEvent,
+      title: item.title || item.url || 'Untitled',
+      summary: item.summary,
+      image: item.image,
+      published: item.published,
+      author: item.author || ''
+    }
+  }
+
   const handleSelectUrl = (url: string, bookmark?: { id: string; kind: number; tags: string[][]; pubkey: string }) => {
     if (bookmark && bookmark.kind === 30023) {
       // For kind:30023 articles, navigate to the article route
@@ -176,10 +413,14 @@ const Me: React.FC<MeProps> = ({ relayPool, activeTab: propActiveTab, pubkey: pr
   const allIndividualBookmarks = bookmarks.flatMap(b => b.individualBookmarks || [])
     .filter(hasContent)
   
-  // Apply filter
+  // Apply bookmark filter
   const filteredBookmarks = filterBookmarksByType(allIndividualBookmarks, bookmarkFilter)
   
   const groups = groupIndividualBookmarks(filteredBookmarks)
+
+  // Apply reading progress filter
+  const filteredReads = filterByReadingProgress(reads, readingProgressFilter)
+  const filteredLinks = filterByReadingProgress(links, readingProgressFilter)
   const sections: Array<{ key: string; title: string; items: IndividualBookmark[] }> = [
     { key: 'private', title: 'Private Bookmarks', items: groups.privateItems },
     { key: 'public', title: 'Public Bookmarks', items: groups.publicItems },
@@ -188,7 +429,7 @@ const Me: React.FC<MeProps> = ({ relayPool, activeTab: propActiveTab, pubkey: pr
   ]
 
   // Show content progressively - no blocking error screens
-  const hasData = highlights.length > 0 || bookmarks.length > 0 || readArticles.length > 0 || writings.length > 0
+  const hasData = highlights.length > 0 || bookmarks.length > 0 || reads.length > 0 || links.length > 0 || writings.length > 0
   const showSkeletons = loading && !hasData
 
   const renderTabContent = () => {
@@ -203,9 +444,9 @@ const Me: React.FC<MeProps> = ({ relayPool, activeTab: propActiveTab, pubkey: pr
             </div>
           )
         }
-        return highlights.length === 0 ? (
+        return highlights.length === 0 && !loading ? (
           <div className="explore-loading" style={{ display: 'flex', justifyContent: 'center', alignItems: 'center', padding: '4rem', color: 'var(--text-secondary)' }}>
-            <FontAwesomeIcon icon={faSpinner} spin size="2x" />
+            No highlights yet.
           </div>
         ) : (
           <div className="highlights-list me-highlights-list">
@@ -232,9 +473,9 @@ const Me: React.FC<MeProps> = ({ relayPool, activeTab: propActiveTab, pubkey: pr
             </div>
           )
         }
-        return allIndividualBookmarks.length === 0 ? (
+        return allIndividualBookmarks.length === 0 && !loading ? (
           <div className="explore-loading" style={{ display: 'flex', justifyContent: 'center', alignItems: 'center', padding: '4rem', color: 'var(--text-secondary)' }}>
-            <FontAwesomeIcon icon={faSpinner} spin size="2x" />
+            No bookmarks yet.
           </div>
         ) : (
           <div className="bookmarks-list">
@@ -298,8 +539,9 @@ const Me: React.FC<MeProps> = ({ relayPool, activeTab: propActiveTab, pubkey: pr
           </div>
         )
 
-      case 'archive':
-        if (showSkeletons) {
+      case 'reads':
+        // Show loading skeletons only while initially loading
+        if (loading && !loadedTabs.has('reads')) {
           return (
             <div className="explore-grid">
               {Array.from({ length: 6 }).map((_, i) => (
@@ -308,20 +550,87 @@ const Me: React.FC<MeProps> = ({ relayPool, activeTab: propActiveTab, pubkey: pr
             </div>
           )
         }
-        return readArticles.length === 0 ? (
-          <div className="explore-loading" style={{ display: 'flex', justifyContent: 'center', alignItems: 'center', padding: '4rem', color: 'var(--text-secondary)' }}>
-            <FontAwesomeIcon icon={faSpinner} spin size="2x" />
-          </div>
-        ) : (
-          <div className="explore-grid">
-            {readArticles.map((post) => (
-              <BlogPostCard
-                key={post.event.id}
-                post={post}
-                href={getPostUrl(post)}
-              />
-            ))}
-          </div>
+        
+        // Show empty state if loaded but no reads
+        if (reads.length === 0 && loadedTabs.has('reads')) {
+          return (
+            <div className="explore-loading" style={{ display: 'flex', justifyContent: 'center', alignItems: 'center', padding: '4rem', color: 'var(--text-secondary)' }}>
+              No articles read yet.
+            </div>
+          )
+        }
+        
+        // Show reads with filters
+        return (
+          <>
+            <ReadingProgressFilters
+              selectedFilter={readingProgressFilter}
+              onFilterChange={handleReadingProgressFilterChange}
+            />
+            {filteredReads.length === 0 ? (
+              <div className="explore-loading" style={{ display: 'flex', justifyContent: 'center', alignItems: 'center', padding: '4rem', color: 'var(--text-secondary)' }}>
+                No articles match this filter.
+              </div>
+            ) : (
+              <div className="explore-grid">
+              {filteredReads.map((item) => (
+                <BlogPostCard
+                  key={item.id}
+                  post={convertReadItemToBlogPostPreview(item)}
+                  href={getReadItemUrl(item)}
+                  readingProgress={item.readingProgress}
+                />
+              ))}
+              </div>
+            )}
+          </>
+        )
+
+      case 'links':
+        // Show loading skeletons only while initially loading
+        if (loading && !loadedTabs.has('links')) {
+          return (
+            <div className="explore-grid">
+              {Array.from({ length: 6 }).map((_, i) => (
+                <BlogPostSkeleton key={i} />
+              ))}
+            </div>
+          )
+        }
+        
+        // Show empty state if loaded but no links
+        if (links.length === 0 && loadedTabs.has('links')) {
+          return (
+            <div className="explore-loading" style={{ display: 'flex', justifyContent: 'center', alignItems: 'center', padding: '4rem', color: 'var(--text-secondary)' }}>
+              No links with reading progress yet.
+            </div>
+          )
+        }
+        
+        // Show links with filters
+        return (
+          <>
+            <ReadingProgressFilters
+              selectedFilter={readingProgressFilter}
+              onFilterChange={handleReadingProgressFilterChange}
+            />
+            {filteredLinks.length === 0 ? (
+              <div className="explore-loading" style={{ display: 'flex', justifyContent: 'center', alignItems: 'center', padding: '4rem', color: 'var(--text-secondary)' }}>
+                No links match this filter.
+              </div>
+            ) : (
+              <div className="explore-grid">
+              {filteredLinks.map((item) => (
+                <BlogPostCard
+                  key={item.id}
+                  post={convertReadItemToBlogPostPreview(item)}
+                  href={getReadItemUrl(item)}
+                  readingProgress={item.readingProgress}
+                />
+              ))}
+              </div>
+            )}
+          </>
         )
 
       case 'writings':
@@ -334,9 +643,9 @@ const Me: React.FC<MeProps> = ({ relayPool, activeTab: propActiveTab, pubkey: pr
             </div>
           )
         }
-        return writings.length === 0 ? (
+        return writings.length === 0 && !loading ? (
           <div className="explore-loading" style={{ display: 'flex', justifyContent: 'center', alignItems: 'center', padding: '4rem', color: 'var(--text-secondary)' }}>
-            <FontAwesomeIcon icon={faSpinner} spin size="2x" />
+            No articles written yet.
           </div>
         ) : (
           <div className="explore-grid">
@@ -384,12 +693,20 @@ const Me: React.FC<MeProps> = ({ relayPool, activeTab: propActiveTab, pubkey: pr
                 <span className="tab-label">Bookmarks</span>
               </button>
               <button
-                className={`me-tab ${activeTab === 'archive' ? 'active' : ''}`}
-                data-tab="archive"
-                onClick={() => navigate('/me/archive')}
+                className={`me-tab ${activeTab === 'reads' ? 'active' : ''}`}
+                data-tab="reads"
+                onClick={() => navigate('/me/reads')}
               >
                 <FontAwesomeIcon icon={faBooks} />
-                <span className="tab-label">Archive</span>
+                <span className="tab-label">Reads</span>
+              </button>
+              <button
+                className={`me-tab ${activeTab === 'links' ? 'active' : ''}`}
+                data-tab="links"
+                onClick={() => navigate('/me/links')}
+              >
+                <FontAwesomeIcon icon={faLink} />
+                <span className="tab-label">Links</span>
               </button>
             </>
           )}

src/components/ReadingProgressFilters.tsx

@@ -0,0 +1,47 @@
+import React from 'react'
+import { FontAwesomeIcon } from '@fortawesome/react-fontawesome'
+import { faBookOpen, faCheckCircle, faAsterisk } from '@fortawesome/free-solid-svg-icons'
+import { faEnvelope, faEnvelopeOpen } from '@fortawesome/free-regular-svg-icons'
+
+export type ReadingProgressFilterType = 'all' | 'unopened' | 'started' | 'reading' | 'completed'
+
+interface ReadingProgressFiltersProps {
+  selectedFilter: ReadingProgressFilterType
+  onFilterChange: (filter: ReadingProgressFilterType) => void
+}
+
+const ReadingProgressFilters: React.FC<ReadingProgressFiltersProps> = ({ selectedFilter, onFilterChange }) => {
+  const filters = [
+    { type: 'all' as const, icon: faAsterisk, label: 'All' },
+    { type: 'unopened' as const, icon: faEnvelope, label: 'Unopened' },
+    { type: 'started' as const, icon: faEnvelopeOpen, label: 'Started' },
+    { type: 'reading' as const, icon: faBookOpen, label: 'Reading' },
+    { type: 'completed' as const, icon: faCheckCircle, label: 'Completed' }
+  ]
+
+  return (
+    <div className="bookmark-filters">
+      {filters.map(filter => {
+        const isActive = selectedFilter === filter.type
+        // Only "completed" gets green color, everything else uses default blue
+        const activeStyle = isActive && filter.type === 'completed' ? { color: '#10b981' } : undefined
+        
+        return (
+          <button
+            key={filter.type}
+            onClick={() => onFilterChange(filter.type)}
+            className={`filter-btn ${isActive ? 'active' : ''}`}
+            title={filter.label}
+            aria-label={`Filter by ${filter.label}`}
+            style={activeStyle}
+          >
+            <FontAwesomeIcon icon={filter.icon} />
+          </button>
+        )
+      })}
+    </div>
+  )
+}
+
+export default ReadingProgressFilters
+

src/components/ReadingProgressIndicator.tsx

@@ -19,6 +19,21 @@ export const ReadingProgressIndicator: React.FC<ReadingProgressIndicatorProps> =
 }) => {
   const clampedProgress = Math.min(100, Math.max(0, progress))
   
+  // Determine reading state based on progress (matching readingProgressUtils.ts logic)
+  const progressDecimal = clampedProgress / 100
+  const isStarted = progressDecimal > 0 && progressDecimal <= 0.10
+  
+  // Determine bar color based on state
+  let barColorClass = ''
+  let barColorStyle: string | undefined = 'var(--color-primary)' // Default blue
+  
+  if (isComplete) {
+    barColorClass = 'bg-green-500'
+    barColorStyle = undefined
+  } else if (isStarted) {
+    barColorStyle = 'var(--color-text)' // Neutral text color (matches card titles)
+  }
+  
   // Calculate left and right offsets based on sidebar states (desktop only)
   const leftOffset = isSidebarCollapsed 
     ? 'var(--sidebar-collapsed-width)' 
@@ -42,14 +57,10 @@ export const ReadingProgressIndicator: React.FC<ReadingProgressIndicatorProps> =
         style={{ backgroundColor: 'var(--color-border)' }}
       >
         <div 
-          className={`h-full rounded-full transition-all duration-300 relative ${
-            isComplete 
-              ? 'bg-green-500' 
-              : ''
-          }`}
+          className={`h-full rounded-full transition-all duration-300 relative ${barColorClass}`}
           style={{ 
             width: `${clampedProgress}%`,
-            backgroundColor: isComplete ? undefined : 'var(--color-primary)'
+            backgroundColor: barColorStyle
           }}
         >
           <div className="absolute inset-0 bg-gradient-to-r from-transparent via-white/30 to-transparent animate-[shimmer_2s_infinite]" />
@@ -60,7 +71,9 @@ export const ReadingProgressIndicator: React.FC<ReadingProgressIndicatorProps> =
           className={`text-[0.625rem] font-normal min-w-[32px] text-right tabular-nums ${
             isComplete ? 'text-green-500' : ''
           }`}
-          style={{ color: isComplete ? undefined : 'var(--color-text-muted)' }}
+          style={{ 
+            color: isComplete ? undefined : isStarted ? 'var(--color-text)' : 'var(--color-text-muted)' 
+          }}
         >
           {isComplete ? '✓' : `${clampedProgress}%`}
         </div>

src/components/Settings.tsx

@@ -34,6 +34,7 @@ const DEFAULT_SETTINGS: UserSettings = {
   useLocalRelayAsCache: true,
   rebroadcastToAllRelays: false,
   paragraphAlignment: 'justify',
+  syncReadingPosition: false,
 }
 
 interface SettingsProps {

src/components/Settings/LayoutBehaviorSettings.tsx

@@ -104,6 +104,45 @@ const LayoutBehaviorSettings: React.FC<LayoutBehaviorSettingsProps> = ({ setting
           <span>Auto-collapse sidebar on small screens</span>
         </label>
       </div>
+
+      <div className="setting-group">
+        <label htmlFor="syncReadingPosition" className="checkbox-label">
+          <input
+            id="syncReadingPosition"
+            type="checkbox"
+            checked={settings.syncReadingPosition ?? false}
+            onChange={(e) => onUpdate({ syncReadingPosition: e.target.checked })}
+            className="setting-checkbox"
+          />
+          <span>Sync reading position across devices</span>
+        </label>
+      </div>
+
+      <div className="setting-group">
+        <label htmlFor="autoScrollToPosition" className="checkbox-label">
+          <input
+            id="autoScrollToPosition"
+            type="checkbox"
+            checked={settings.autoScrollToPosition !== false}
+            onChange={(e) => onUpdate({ autoScrollToPosition: e.target.checked })}
+            className="setting-checkbox"
+          />
+          <span>Auto-scroll to last reading position</span>
+        </label>
+      </div>
+
+      <div className="setting-group">
+        <label htmlFor="autoMarkAsReadAt100" className="checkbox-label">
+          <input
+            id="autoMarkAsReadAt100"
+            type="checkbox"
+            checked={settings.autoMarkAsReadAt100 ?? false}
+            onChange={(e) => onUpdate({ autoMarkAsReadAt100: e.target.checked })}
+            className="setting-checkbox"
+          />
+          <span>Automatically mark as read when reading progress is 100%</span>
+        </label>
+      </div>
     </div>
   )
 }

src/components/ThreePaneLayout.tsx

@@ -47,6 +47,8 @@ interface ThreePaneLayoutProps {
   onRefresh: () => void
   relayPool: RelayPool | null
   eventStore: IEventStore | null
+  readingPositions?: Map<string, number>
+  markedAsReadIds?: Set<string>
   
   // Content pane
   readerLoading: boolean
@@ -324,6 +326,8 @@ const ThreePaneLayout: React.FC<ThreePaneLayoutProps> = (props) => {
             loading={props.bookmarksLoading}
             relayPool={props.relayPool}
             isMobile={isMobile}
+            readingPositions={props.readingPositions}
+            markedAsReadIds={props.markedAsReadIds}
             settings={props.settings}
           />
         </div>

src/config/kinds.ts

@@ -0,0 +1,15 @@
+// Nostr event kinds used throughout the application
+export const KINDS = {
+  Highlights: 9802,              // NIP-?? user highlights
+  BlogPost: 30023,               // NIP-23 long-form article
+  AppData: 30078,                // NIP-78 application data (reading positions)
+  List: 30001,                   // NIP-51 list (addressable)
+  ListReplaceable: 30003,        // NIP-51 replaceable list
+  ListSimple: 10003,             // NIP-51 simple list
+  WebBookmark: 39701,            // NIP-B0 web bookmark
+  ReactionToEvent: 7,            // emoji reaction to event (used for mark-as-read)
+  ReactionToUrl: 17              // emoji reaction to URL (used for mark-as-read)
+} as const
+
+export type KindValue = typeof KINDS[keyof typeof KINDS]
+

src/hooks/useBookmarksData.ts

@@ -1,12 +1,16 @@
 import { useState, useEffect, useCallback } from 'react'
 import { RelayPool } from 'applesauce-relay'
 import { IAccount, AccountManager } from 'applesauce-accounts'
+import { IEventStore } from 'applesauce-core'
 import { Bookmark } from '../types/bookmarks'
 import { Highlight } from '../types/highlights'
 import { fetchBookmarks } from '../services/bookmarkService'
 import { fetchHighlights, fetchHighlightsForArticle } from '../services/highlightService'
 import { fetchContacts } from '../services/contactService'
 import { UserSettings } from '../services/settingsService'
+import { loadReadingPosition, generateArticleIdentifier } from '../services/readingPositionService'
+import { fetchReadArticles } from '../services/libraryService'
+import { nip19 } from 'nostr-tools'
 
 interface UseBookmarksDataParams {
   relayPool: RelayPool | null
@@ -17,6 +21,7 @@ interface UseBookmarksDataParams {
   currentArticleCoordinate?: string
   currentArticleEventId?: string
   settings?: UserSettings
+  eventStore?: IEventStore
 }
 
 export const useBookmarksData = ({
@@ -27,7 +32,8 @@ export const useBookmarksData = ({
   externalUrl,
   currentArticleCoordinate,
   currentArticleEventId,
-  settings
+  settings,
+  eventStore
 }: UseBookmarksDataParams) => {
   const [bookmarks, setBookmarks] = useState<Bookmark[]>([])
   const [bookmarksLoading, setBookmarksLoading] = useState(true)
@@ -36,6 +42,8 @@ export const useBookmarksData = ({
   const [followedPubkeys, setFollowedPubkeys] = useState<Set<string>>(new Set())
   const [isRefreshing, setIsRefreshing] = useState(false)
   const [lastFetchTime, setLastFetchTime] = useState<number | null>(null)
+  const [readingPositions, setReadingPositions] = useState<Map<string, number>>(new Map())
+  const [markedAsReadIds, setMarkedAsReadIds] = useState<Set<string>>(new Set())
 
   const handleFetchContacts = useCallback(async () => {
     if (!relayPool || !activeAccount) return
@@ -125,6 +133,93 @@ export const useBookmarksData = ({
     handleFetchContacts()
   }, [relayPool, activeAccount, naddr, externalUrl, handleFetchHighlights, handleFetchContacts])
 
+  // Fetch marked-as-read articles
+  useEffect(() => {
+    const loadMarkedAsRead = async () => {
+      if (!activeAccount || !relayPool || !eventStore || bookmarks.length === 0) {
+        return
+      }
+
+      try {
+        const readArticles = await fetchReadArticles(relayPool, activeAccount.pubkey)
+        
+        // Create a set of bookmark IDs that are marked as read
+        const markedBookmarkIds = new Set<string>()
+        
+        // For each read article, we need to match it to bookmark IDs
+        for (const readArticle of readArticles) {
+          // Add the event ID directly (for web bookmarks and legacy compatibility)
+          markedBookmarkIds.add(readArticle.id)
+          
+          // For nostr-native articles (kind:7 reactions), also add the coordinate format
+          if (readArticle.eventId && readArticle.eventAuthor && readArticle.eventKind) {
+            // Try to get the event from the eventStore to find the 'd' tag
+            const event = eventStore.getEvent(readArticle.eventId)
+            if (event) {
+              const dTag = event.tags?.find((t: string[]) => t[0] === 'd')?.[1] || ''
+              const coordinate = `${event.kind}:${event.pubkey}:${dTag}`
+              markedBookmarkIds.add(coordinate)
+            }
+          }
+        }
+        
+        setMarkedAsReadIds(markedBookmarkIds)
+      } catch (error) {
+        console.warn('⚠️ [Bookmarks] Failed to load marked-as-read articles:', error)
+      }
+    }
+
+    loadMarkedAsRead()
+  }, [relayPool, activeAccount, eventStore, bookmarks])
+
+  // Load reading positions for bookmarked articles (kind:30023)
+  useEffect(() => {
+    const loadPositions = async () => {
+      if (!activeAccount || !relayPool || !eventStore || bookmarks.length === 0 || !settings?.syncReadingPosition) {
+        return
+      }
+
+      const positions = new Map<string, number>()
+
+      // Extract all kind:30023 articles from bookmarks
+      const articles = bookmarks.flatMap(bookmark => 
+        (bookmark.individualBookmarks || []).filter(item => item.kind === 30023)
+      )
+
+      await Promise.all(
+        articles.map(async (article) => {
+          try {
+            const dTag = article.tags.find(t => t[0] === 'd')?.[1] || ''
+            const naddr = nip19.naddrEncode({
+              kind: 30023,
+              pubkey: article.pubkey,
+              identifier: dTag
+            })
+            const articleUrl = `nostr:${naddr}`
+            const identifier = generateArticleIdentifier(articleUrl)
+
+            const savedPosition = await loadReadingPosition(
+              relayPool,
+              eventStore,
+              activeAccount.pubkey,
+              identifier
+            )
+
+            if (savedPosition && savedPosition.position > 0) {
+              positions.set(article.id, savedPosition.position)
+            }
+          } catch (error) {
+            console.warn('⚠️ [Bookmarks] Failed to load reading position for article:', error)
+          }
+        })
+      )
+
+      setReadingPositions(positions)
+    }
+
+    loadPositions()
+  }, [bookmarks, activeAccount, relayPool, eventStore, settings?.syncReadingPosition])
+
   return {
     bookmarks,
     bookmarksLoading,
@@ -137,7 +232,9 @@ export const useBookmarksData = ({
     lastFetchTime,
     handleFetchBookmarks,
     handleFetchHighlights,
-    handleRefreshAll
+    handleRefreshAll,
+    readingPositions,
+    markedAsReadIds
   }
 }
 

src/hooks/useReadingPosition.ts

@@ -1,21 +1,72 @@
-import { useEffect, useRef, useState } from 'react'
+import { useEffect, useRef, useState, useCallback } from 'react'
 
 interface UseReadingPositionOptions {
   enabled?: boolean
   onPositionChange?: (position: number) => void
   onReadingComplete?: () => void
   readingCompleteThreshold?: number // Default 0.9 (90%)
+  syncEnabled?: boolean // Whether to sync positions to Nostr
+  onSave?: (position: number) => void // Callback for saving position
+  autoSaveInterval?: number // Auto-save interval in ms (default 5000)
 }
 
 export const useReadingPosition = ({
   enabled = true,
   onPositionChange,
   onReadingComplete,
-  readingCompleteThreshold = 0.9
+  readingCompleteThreshold = 0.9,
+  syncEnabled = false,
+  onSave,
+  autoSaveInterval = 5000
 }: UseReadingPositionOptions = {}) => {
   const [position, setPosition] = useState(0)
   const [isReadingComplete, setIsReadingComplete] = useState(false)
   const hasTriggeredComplete = useRef(false)
+  const lastSavedPosition = useRef(0)
+  const saveTimerRef = useRef<ReturnType<typeof setTimeout> | null>(null)
+
+  // Debounced save function
+  const scheduleSave = useCallback((currentPosition: number) => {
+    if (!syncEnabled || !onSave) return
+    
+    // Don't save if position is too low (< 5%)
+    if (currentPosition < 0.05) return
+    
+    // Don't save if position hasn't changed significantly (less than 1%)
+    // But always save if we've reached 100% (completion)
+    const hasSignificantChange = Math.abs(currentPosition - lastSavedPosition.current) >= 0.01
+    const hasReachedCompletion = currentPosition === 1 && lastSavedPosition.current < 1
+    
+    if (!hasSignificantChange && !hasReachedCompletion) return
+
+    // Clear existing timer
+    if (saveTimerRef.current) {
+      clearTimeout(saveTimerRef.current)
+    }
+
+    // Schedule new save
+    saveTimerRef.current = setTimeout(() => {
+      lastSavedPosition.current = currentPosition
+      onSave(currentPosition)
+    }, autoSaveInterval)
+  }, [syncEnabled, onSave, autoSaveInterval])
+
+  // Immediate save function
+  const saveNow = useCallback(() => {
+    if (!syncEnabled || !onSave) return
+    
+    // Cancel any pending saves
+    if (saveTimerRef.current) {
+      clearTimeout(saveTimerRef.current)
+      saveTimerRef.current = null
+    }
+
+    // Save if position is meaningful (>= 5%)
+    if (position >= 0.05) {
+      lastSavedPosition.current = position
+      onSave(position)
+    }
+  }, [syncEnabled, onSave, position])
 
   useEffect(() => {
     if (!enabled) return
@@ -30,12 +81,20 @@ export const useReadingPosition = ({
       const documentHeight = document.documentElement.scrollHeight
       
       // Calculate position based on how much of the content has been scrolled through
-      const scrollProgress = Math.min(scrollTop / (documentHeight - windowHeight), 1)
-      const clampedProgress = Math.max(0, Math.min(1, scrollProgress))
+      // Add a small threshold (5px) to account for rounding and make it easier to reach 100%
+      const maxScroll = documentHeight - windowHeight
+      const scrollProgress = maxScroll > 0 ? scrollTop / maxScroll : 0
+      
+      // If we're within 5px of the bottom, consider it 100%
+      const isAtBottom = scrollTop + windowHeight >= documentHeight - 5
+      const clampedProgress = isAtBottom ? 1 : Math.max(0, Math.min(1, scrollProgress))
       
       setPosition(clampedProgress)
       onPositionChange?.(clampedProgress)
 
+      // Schedule auto-save if sync is enabled
+      scheduleSave(clampedProgress)
+
       // Check if reading is complete
       if (clampedProgress >= readingCompleteThreshold && !hasTriggeredComplete.current) {
         setIsReadingComplete(true)
@@ -54,8 +113,13 @@ export const useReadingPosition = ({
     return () => {
       window.removeEventListener('scroll', handleScroll)
       window.removeEventListener('resize', handleScroll)
+      
+      // Clear save timer on unmount
+      if (saveTimerRef.current) {
+        clearTimeout(saveTimerRef.current)
+      }
     }
-  }, [enabled, onPositionChange, onReadingComplete, readingCompleteThreshold])
+  }, [enabled, onPositionChange, onReadingComplete, readingCompleteThreshold, scheduleSave])
 
   // Reset reading complete state when enabled changes
   useEffect(() => {
@@ -68,6 +132,7 @@ export const useReadingPosition = ({
   return {
     position,
     isReadingComplete,
-    progressPercentage: Math.round(position * 100)
+    progressPercentage: Math.round(position * 100),
+    saveNow
   }
 }

src/services/bookmarkService.ts

@@ -15,6 +15,7 @@ import { collectBookmarksFromEvents } from './bookmarkProcessing.ts'
 import { UserSettings } from './settingsService'
 import { rebroadcastEvents } from './rebroadcastService'
 import { queryEvents } from './dataFetch'
+import { KINDS } from '../config/kinds'
 
 
 
@@ -34,7 +35,7 @@ export const fetchBookmarks = async (
 
     const rawEvents = await queryEvents(
       relayPool,
-      { kinds: [10003, 30003, 30001, 39701], authors: [activeAccount.pubkey] },
+      { kinds: [KINDS.ListSimple, KINDS.ListReplaceable, KINDS.List, KINDS.WebBookmark], authors: [activeAccount.pubkey] },
       {}
     )
     console.log('📊 Raw events fetched:', rawEvents.length, 'events')
@@ -71,7 +72,7 @@ export const fetchBookmarks = async (
     })
     
     // Check specifically for Primal's "reads" list
-    const primalReads = rawEvents.find(e => e.kind === 10003 && e.tags?.find((t: string[]) => t[0] === 'd' && t[1] === 'reads'))
+    const primalReads = rawEvents.find(e => e.kind === KINDS.ListSimple && e.tags?.find((t: string[]) => t[0] === 'd' && t[1] === 'reads'))
     if (primalReads) {
       console.log('✅ Found Primal reads list:', primalReads.id.slice(0, 8))
     } else {

src/services/exploreService.ts

@@ -2,6 +2,7 @@ import { RelayPool } from 'applesauce-relay'
 import { NostrEvent } from 'nostr-tools'
 import { Helpers } from 'applesauce-core'
 import { queryEvents } from './dataFetch'
+import { KINDS } from '../config/kinds'
 
 const { getArticleTitle, getArticleImage, getArticlePublished, getArticleSummary } = Helpers
 
@@ -41,7 +42,7 @@ export const fetchBlogPostsFromAuthors = async (
 
     await queryEvents(
       relayPool,
-      { kinds: [30023], authors: pubkeys, limit: 100 },
+      { kinds: [KINDS.BlogPost], authors: pubkeys, limit: 100 },
       {
         relayUrls,
         onEvent: (event: NostrEvent) => {

src/services/highlights/fetchByAuthor.ts

@@ -6,6 +6,7 @@ import { prioritizeLocalRelays, partitionRelays } from '../../utils/helpers'
 import { eventToHighlight, dedupeHighlights, sortHighlights } from '../highlightEventProcessor'
 import { UserSettings } from '../settingsService'
 import { rebroadcastEvents } from '../rebroadcastService'
+import { KINDS } from '../../config/kinds'
 
 export const fetchHighlights = async (
   relayPool: RelayPool,
@@ -21,7 +22,7 @@ export const fetchHighlights = async (
     const seenIds = new Set<string>()
     const local$ = localRelays.length > 0
       ? relayPool
-          .req(localRelays, { kinds: [9802], authors: [pubkey] })
+          .req(localRelays, { kinds: [KINDS.Highlights], authors: [pubkey] })
           .pipe(
             onlyEvents(),
             tap((event: NostrEvent) => {
@@ -36,7 +37,7 @@ export const fetchHighlights = async (
       : new Observable<NostrEvent>((sub) => sub.complete())
     const remote$ = remoteRelays.length > 0
       ? relayPool
-          .req(remoteRelays, { kinds: [9802], authors: [pubkey] })
+          .req(remoteRelays, { kinds: [KINDS.Highlights], authors: [pubkey] })
           .pipe(
             onlyEvents(),
             tap((event: NostrEvent) => {

src/services/libraryService.ts

@@ -2,6 +2,7 @@ import { RelayPool } from 'applesauce-relay'
 import { NostrEvent } from 'nostr-tools'
 import { Helpers } from 'applesauce-core'
 import { RELAYS } from '../config/relays'
+import { KINDS } from '../config/kinds'
 import { MARK_AS_READ_EMOJI } from './reactionService'
 import { BlogPostPreview } from './exploreService'
 import { queryEvents } from './dataFetch'
@@ -29,8 +30,8 @@ export async function fetchReadArticles(
   try {
     // Fetch kind:7 and kind:17 reactions in parallel
     const [kind7Events, kind17Events] = await Promise.all([
-      queryEvents(relayPool, { kinds: [7], authors: [userPubkey] }, { relayUrls: RELAYS }),
-      queryEvents(relayPool, { kinds: [17], authors: [userPubkey] }, { relayUrls: RELAYS })
+      queryEvents(relayPool, { kinds: [KINDS.ReactionToEvent], authors: [userPubkey] }, { relayUrls: RELAYS }),
+      queryEvents(relayPool, { kinds: [KINDS.ReactionToUrl], authors: [userPubkey] }, { relayUrls: RELAYS })
     ])
 
     const readArticles: ReadArticle[] = []
@@ -102,7 +103,7 @@ export async function fetchReadArticlesWithData(
     
     // Filter to only nostr-native articles (kind 30023)
     const nostrArticles = readArticles.filter(
-      article => article.eventKind === 30023 && article.eventId
+      article => article.eventKind === KINDS.BlogPost && article.eventId
     )
 
     if (nostrArticles.length === 0) {
@@ -114,7 +115,7 @@ export async function fetchReadArticlesWithData(
     
     const articleEvents = await queryEvents(
       relayPool,
-      { kinds: [30023], ids: eventIds },
+      { kinds: [KINDS.BlogPost], ids: eventIds },
       { relayUrls: RELAYS }
     )
 

src/services/linksService.ts

@@ -0,0 +1,90 @@
+import { RelayPool } from 'applesauce-relay'
+import { fetchReadArticles } from './libraryService'
+import { queryEvents } from './dataFetch'
+import { RELAYS } from '../config/relays'
+import { KINDS } from '../config/kinds'
+import { ReadItem } from './readsService'
+import { processReadingPositions, processMarkedAsRead, filterValidItems, sortByReadingActivity } from './readingDataProcessor'
+import { mergeReadItem } from '../utils/readItemMerge'
+
+/**
+ * Fetches external URL links with reading progress from:
+ * - URLs with reading progress (kind:30078)
+ * - Manually marked as read URLs (kind:7, kind:17)
+ */
+export async function fetchLinks(
+  relayPool: RelayPool,
+  userPubkey: string,
+  onItem?: (item: ReadItem) => void
+): Promise<ReadItem[]> {
+  console.log('🔗 [Links] Fetching external links for user:', userPubkey.slice(0, 8))
+  
+  const linksMap = new Map<string, ReadItem>()
+  
+  // Helper to emit items as they're added/updated
+  const emitItem = (item: ReadItem) => {
+    if (onItem && mergeReadItem(linksMap, item)) {
+      onItem(linksMap.get(item.id)!)
+    } else if (!onItem) {
+      linksMap.set(item.id, item)
+    }
+  }
+  
+  try {
+    // Fetch all data sources in parallel
+    const [readingPositionEvents, markedAsReadArticles] = await Promise.all([
+      queryEvents(relayPool, { kinds: [KINDS.AppData], authors: [userPubkey] }, { relayUrls: RELAYS }),
+      fetchReadArticles(relayPool, userPubkey)
+    ])
+
+    console.log('📊 [Links] Data fetched:', {
+      readingPositions: readingPositionEvents.length,
+      markedAsRead: markedAsReadArticles.length
+    })
+
+    // Process reading positions and emit external items
+    processReadingPositions(readingPositionEvents, linksMap)
+    if (onItem) {
+      linksMap.forEach(item => {
+        if (item.type === 'external') {
+          const hasProgress = (item.readingProgress && item.readingProgress > 0) || item.markedAsRead
+          if (hasProgress) emitItem(item)
+        }
+      })
+    }
+    
+    // Process marked-as-read and emit external items
+    processMarkedAsRead(markedAsReadArticles, linksMap)
+    if (onItem) {
+      linksMap.forEach(item => {
+        if (item.type === 'external') {
+          const hasProgress = (item.readingProgress && item.readingProgress > 0) || item.markedAsRead
+          if (hasProgress) emitItem(item)
+        }
+      })
+    }
+
+    // Filter for external URLs only with reading progress
+    const links = Array.from(linksMap.values())
+      .filter(item => {
+        // Only external URLs
+        if (item.type !== 'external') return false
+        
+        // Only include if there's reading progress or marked as read
+        const hasProgress = (item.readingProgress && item.readingProgress > 0) || item.markedAsRead
+        return hasProgress
+      })
+
+    // Apply common validation and sorting
+    const validLinks = filterValidItems(links)
+    const sortedLinks = sortByReadingActivity(validLinks)
+
+    console.log('✅ [Links] Processed', sortedLinks.length, 'total links')
+    return sortedLinks
+
+  } catch (error) {
+    console.error('Failed to fetch links:', error)
+    return []
+  }
+}
+

src/services/meCache.ts

@@ -1,11 +1,12 @@
 import { Highlight } from '../types/highlights'
 import { Bookmark } from '../types/bookmarks'
-import { BlogPostPreview } from './exploreService'
+import { ReadItem } from './readsService'
 
 export interface MeCache {
   highlights: Highlight[]
   bookmarks: Bookmark[]
-  readArticles: BlogPostPreview[]
+  reads: ReadItem[]
+  links: ReadItem[]
   timestamp: number
 }
 
@@ -21,12 +22,14 @@ export function setCachedMeData(
   pubkey: string,
   highlights: Highlight[],
   bookmarks: Bookmark[],
-  readArticles: BlogPostPreview[]
+  reads: ReadItem[],
+  links: ReadItem[] = []
 ): void {
   meCache.set(pubkey, {
     highlights,
     bookmarks,
-    readArticles,
+    reads,
+    links,
     timestamp: Date.now()
   })
 }
@@ -45,10 +48,10 @@ export function updateCachedBookmarks(pubkey: string, bookmarks: Bookmark[]): vo
   }
 }
 
-export function updateCachedReadArticles(pubkey: string, readArticles: BlogPostPreview[]): void {
+export function updateCachedReads(pubkey: string, reads: ReadItem[]): void {
   const existing = meCache.get(pubkey)
   if (existing) {
-    meCache.set(pubkey, { ...existing, readArticles, timestamp: Date.now() })
+    meCache.set(pubkey, { ...existing, reads, timestamp: Date.now() })
   }
 }
 

src/services/readingDataProcessor.ts

@@ -0,0 +1,147 @@
+import { NostrEvent } from 'nostr-tools'
+import { ReadItem } from './readsService'
+import { fallbackTitleFromUrl } from '../utils/readItemMerge'
+
+const READING_POSITION_PREFIX = 'boris:reading-position:'
+
+interface ReadArticle {
+  id: string
+  url?: string
+  eventId?: string
+  eventKind?: number
+  markedAt: number
+}
+
+/**
+ * Processes reading position events into ReadItems
+ */
+export function processReadingPositions(
+  events: NostrEvent[],
+  readsMap: Map<string, ReadItem>
+): void {
+  for (const event of events) {
+    const dTag = event.tags.find(t => t[0] === 'd')?.[1]
+    if (!dTag || !dTag.startsWith(READING_POSITION_PREFIX)) continue
+
+    const identifier = dTag.replace(READING_POSITION_PREFIX, '')
+    
+    try {
+      const positionData = JSON.parse(event.content)
+      const position = positionData.position
+      const timestamp = positionData.timestamp
+
+      let itemId: string
+      let itemUrl: string | undefined
+      let itemType: 'article' | 'external' = 'external'
+
+      // Check if it's a nostr article (naddr format)
+      if (identifier.startsWith('naddr1')) {
+        itemId = identifier
+        itemType = 'article'
+      } else {
+        // It's a base64url-encoded URL
+        try {
+          itemUrl = atob(identifier.replace(/-/g, '+').replace(/_/g, '/'))
+          itemId = itemUrl
+          itemType = 'external'
+        } catch (e) {
+          console.warn('Failed to decode URL identifier:', identifier)
+          continue
+        }
+      }
+
+      // Add or update the item
+      const existing = readsMap.get(itemId)
+      if (!existing || !existing.readingTimestamp || timestamp > existing.readingTimestamp) {
+        readsMap.set(itemId, {
+          ...existing,
+          id: itemId,
+          source: 'reading-progress',
+          type: itemType,
+          url: itemUrl,
+          readingProgress: position,
+          readingTimestamp: timestamp
+        })
+      }
+    } catch (error) {
+      console.warn('Failed to parse reading position:', error)
+    }
+  }
+}
+
+/**
+ * Processes marked-as-read articles into ReadItems
+ */
+export function processMarkedAsRead(
+  articles: ReadArticle[],
+  readsMap: Map<string, ReadItem>
+): void {
+  for (const article of articles) {
+    const existing = readsMap.get(article.id)
+    
+    if (article.eventId && article.eventKind === 30023) {
+      // Nostr article
+      readsMap.set(article.id, {
+        ...existing,
+        id: article.id,
+        source: 'marked-as-read',
+        type: 'article',
+        markedAsRead: true,
+        markedAt: article.markedAt,
+        readingTimestamp: existing?.readingTimestamp || article.markedAt
+      })
+    } else if (article.url) {
+      // External URL
+      readsMap.set(article.id, {
+        ...existing,
+        id: article.id,
+        source: 'marked-as-read',
+        type: 'external',
+        url: article.url,
+        markedAsRead: true,
+        markedAt: article.markedAt,
+        readingTimestamp: existing?.readingTimestamp || article.markedAt
+      })
+    }
+  }
+}
+
+/**
+ * Sorts ReadItems by most recent reading activity
+ */
+export function sortByReadingActivity(items: ReadItem[]): ReadItem[] {
+  return items.sort((a, b) => {
+    const timeA = a.readingTimestamp || a.markedAt || 0
+    const timeB = b.readingTimestamp || b.markedAt || 0
+    return timeB - timeA
+  })
+}
+
+/**
+ * Filters out items without timestamps and enriches external items with fallback titles
+ */
+export function filterValidItems(items: ReadItem[]): ReadItem[] {
+  return items
+    .filter(item => {
+      // Only include items that have a timestamp
+      const hasTimestamp = (item.readingTimestamp && item.readingTimestamp > 0) || 
+                          (item.markedAt && item.markedAt > 0)
+      if (!hasTimestamp) return false
+      
+      // For Nostr articles, we need the event to be valid
+      if (item.type === 'article' && !item.event) return false
+      
+      // For external URLs, we need at least a URL
+      if (item.type === 'external' && !item.url) return false
+      
+      return true
+    })
+    .map(item => {
+      // Add fallback title for external URLs without titles
+      if (item.type === 'external' && !item.title && item.url) {
+        return { ...item, title: fallbackTitleFromUrl(item.url) }
+      }
+      return item
+    })
+}
+

src/services/readingPositionService.ts

@@ -0,0 +1,196 @@
+import { IEventStore, mapEventsToStore } from 'applesauce-core'
+import { EventFactory } from 'applesauce-factory'
+import { RelayPool, onlyEvents } from 'applesauce-relay'
+import { NostrEvent } from 'nostr-tools'
+import { firstValueFrom } from 'rxjs'
+import { publishEvent } from './writeService'
+import { RELAYS } from '../config/relays'
+
+const APP_DATA_KIND = 30078 // NIP-78 Application Data
+const READING_POSITION_PREFIX = 'boris:reading-position:'
+
+export interface ReadingPosition {
+  position: number // 0-1 scroll progress
+  timestamp: number // Unix timestamp
+  scrollTop?: number // Optional: pixel position
+}
+
+// Helper to extract and parse reading position from an event
+function getReadingPositionContent(event: NostrEvent): ReadingPosition | undefined {
+  if (!event.content || event.content.length === 0) return undefined
+  try {
+    return JSON.parse(event.content) as ReadingPosition
+  } catch {
+    return undefined
+  }
+}
+
+/**
+ * Generate a unique identifier for an article
+ * For Nostr articles: use the naddr directly
+ * For external URLs: use base64url encoding of the URL
+ */
+export function generateArticleIdentifier(naddrOrUrl: string): string {
+  // If it starts with "nostr:", extract the naddr
+  if (naddrOrUrl.startsWith('nostr:')) {
+    return naddrOrUrl.replace('nostr:', '')
+  }
+  // For URLs, use base64url encoding (URL-safe)
+  return btoa(naddrOrUrl)
+    .replace(/\+/g, '-')
+    .replace(/\//g, '_')
+    .replace(/=+$/, '')
+}
+
+/**
+ * Save reading position to Nostr (Kind 30078)
+ */
+export async function saveReadingPosition(
+  relayPool: RelayPool,
+  eventStore: IEventStore,
+  factory: EventFactory,
+  articleIdentifier: string,
+  position: ReadingPosition
+): Promise<void> {
+  console.log('💾 [ReadingPosition] Saving position:', {
+    identifier: articleIdentifier.slice(0, 32) + '...',
+    position: position.position,
+    positionPercent: Math.round(position.position * 100) + '%',
+    timestamp: position.timestamp,
+    scrollTop: position.scrollTop
+  })
+
+  const dTag = `${READING_POSITION_PREFIX}${articleIdentifier}`
+
+  const draft = await factory.create(async () => ({
+    kind: APP_DATA_KIND,
+    content: JSON.stringify(position),
+    tags: [
+      ['d', dTag],
+      ['client', 'boris']
+    ],
+    created_at: Math.floor(Date.now() / 1000)
+  }))
+
+  const signed = await factory.sign(draft)
+
+  // Use unified write service
+  await publishEvent(relayPool, eventStore, signed)
+
+  console.log('✅ [ReadingPosition] Position saved successfully, event ID:', signed.id.slice(0, 8))
+}
+
+/**
+ * Load reading position from Nostr
+ */
+export async function loadReadingPosition(
+  relayPool: RelayPool,
+  eventStore: IEventStore,
+  pubkey: string,
+  articleIdentifier: string
+): Promise<ReadingPosition | null> {
+  const dTag = `${READING_POSITION_PREFIX}${articleIdentifier}`
+
+  console.log('📖 [ReadingPosition] Loading position:', {
+    pubkey: pubkey.slice(0, 8) + '...',
+    identifier: articleIdentifier.slice(0, 32) + '...',
+    dTag: dTag.slice(0, 50) + '...'
+  })
+
+  // First, check if we already have the position in the local event store
+  try {
+    const localEvent = await firstValueFrom(
+      eventStore.replaceable(APP_DATA_KIND, pubkey, dTag)
+    )
+    if (localEvent) {
+      const content = getReadingPositionContent(localEvent)
+      if (content) {
+        console.log('✅ [ReadingPosition] Loaded from local store:', {
+          position: content.position,
+          positionPercent: Math.round(content.position * 100) + '%',
+          timestamp: content.timestamp
+        })
+        
+        // Still fetch from relays in the background to get any updates
+        relayPool
+          .subscription(RELAYS, {
+            kinds: [APP_DATA_KIND],
+            authors: [pubkey],
+            '#d': [dTag]
+          })
+          .pipe(onlyEvents(), mapEventsToStore(eventStore))
+          .subscribe()
+        
+        return content
+      }
+    }
+  } catch (err) {
+    console.log('📭 No cached reading position found, fetching from relays...')
+  }
+
+  // If not in local store, fetch from relays
+  return new Promise((resolve) => {
+    let hasResolved = false
+    const timeout = setTimeout(() => {
+      if (!hasResolved) {
+        console.log('⏱️ Reading position load timeout - no position found')
+        hasResolved = true
+        resolve(null)
+      }
+    }, 3000) // Shorter timeout for reading positions
+
+    const sub = relayPool
+      .subscription(RELAYS, {
+        kinds: [APP_DATA_KIND],
+        authors: [pubkey],
+        '#d': [dTag]
+      })
+      .pipe(onlyEvents(), mapEventsToStore(eventStore))
+      .subscribe({
+        complete: async () => {
+          clearTimeout(timeout)
+          if (!hasResolved) {
+            hasResolved = true
+            try {
+              const event = await firstValueFrom(
+                eventStore.replaceable(APP_DATA_KIND, pubkey, dTag)
+              )
+              if (event) {
+                const content = getReadingPositionContent(event)
+                if (content) {
+                  console.log('✅ [ReadingPosition] Loaded from relays:', {
+                    position: content.position,
+                    positionPercent: Math.round(content.position * 100) + '%',
+                    timestamp: content.timestamp
+                  })
+                  resolve(content)
+                } else {
+                  console.log('⚠️ [ReadingPosition] Event found but no valid content')
+                  resolve(null)
+                }
+              } else {
+                console.log('📭 [ReadingPosition] No position found on relays')
+                resolve(null)
+              }
+            } catch (err) {
+              console.error('❌ Error loading reading position:', err)
+              resolve(null)
+            }
+          }
+        },
+        error: (err) => {
+          console.error('❌ Reading position subscription error:', err)
+          clearTimeout(timeout)
+          if (!hasResolved) {
+            hasResolved = true
+            resolve(null)
+          }
+        }
+      })
+
+    setTimeout(() => {
+      sub.unsubscribe()
+    }, 3000)
+  })
+}
+

src/services/readsService.ts

@@ -0,0 +1,197 @@
+import { RelayPool } from 'applesauce-relay'
+import { NostrEvent } from 'nostr-tools'
+import { Helpers } from 'applesauce-core'
+import { Bookmark } from '../types/bookmarks'
+import { fetchReadArticles } from './libraryService'
+import { queryEvents } from './dataFetch'
+import { RELAYS } from '../config/relays'
+import { KINDS } from '../config/kinds'
+import { classifyBookmarkType } from '../utils/bookmarkTypeClassifier'
+import { nip19 } from 'nostr-tools'
+import { processReadingPositions, processMarkedAsRead, filterValidItems, sortByReadingActivity } from './readingDataProcessor'
+import { mergeReadItem } from '../utils/readItemMerge'
+
+const { getArticleTitle, getArticleImage, getArticlePublished, getArticleSummary } = Helpers
+
+export interface ReadItem {
+  id: string // event ID or URL or coordinate
+  source: 'bookmark' | 'reading-progress' | 'marked-as-read'
+  type: 'article' | 'external' // article=kind:30023, external=URL
+  
+  // Article data
+  event?: NostrEvent
+  url?: string
+  title?: string
+  summary?: string
+  image?: string
+  published?: number
+  author?: string
+  
+  // Reading metadata
+  readingProgress?: number // 0-1
+  readingTimestamp?: number // Unix timestamp of last reading activity
+  markedAsRead?: boolean
+  markedAt?: number
+}
+
+/**
+ * Fetches all reads from multiple sources:
+ * - Bookmarked articles (kind:30023) and article/website URLs
+ * - Articles/URLs with reading progress (kind:30078)
+ * - Manually marked as read articles/URLs (kind:7, kind:17)
+ */
+export async function fetchAllReads(
+  relayPool: RelayPool,
+  userPubkey: string,
+  bookmarks: Bookmark[],
+  onItem?: (item: ReadItem) => void
+): Promise<ReadItem[]> {
+  console.log('📚 [Reads] Fetching all reads for user:', userPubkey.slice(0, 8))
+  
+  const readsMap = new Map<string, ReadItem>()
+  
+  // Helper to emit items as they're added/updated
+  const emitItem = (item: ReadItem) => {
+    if (onItem && mergeReadItem(readsMap, item)) {
+      onItem(readsMap.get(item.id)!)
+    } else if (!onItem) {
+      readsMap.set(item.id, item)
+    }
+  }
+  
+  try {
+    // Fetch all data sources in parallel
+    const [readingPositionEvents, markedAsReadArticles] = await Promise.all([
+      queryEvents(relayPool, { kinds: [KINDS.AppData], authors: [userPubkey] }, { relayUrls: RELAYS }),
+      fetchReadArticles(relayPool, userPubkey)
+    ])
+
+    console.log('📊 [Reads] Data fetched:', {
+      readingPositions: readingPositionEvents.length,
+      markedAsRead: markedAsReadArticles.length,
+      bookmarks: bookmarks.length
+    })
+
+    // Process reading positions and emit items
+    processReadingPositions(readingPositionEvents, readsMap)
+    if (onItem) {
+      readsMap.forEach(item => {
+        if (item.type === 'article') onItem(item)
+      })
+    }
+    
+    // Process marked-as-read and emit items
+    processMarkedAsRead(markedAsReadArticles, readsMap)
+    if (onItem) {
+      readsMap.forEach(item => {
+        if (item.type === 'article') onItem(item)
+      })
+    }
+
+    // 3. Process bookmarked articles and article/website URLs
+    const allBookmarks = bookmarks.flatMap(b => b.individualBookmarks || [])
+    
+    for (const bookmark of allBookmarks) {
+      const bookmarkType = classifyBookmarkType(bookmark)
+      
+      // Only include articles
+      if (bookmarkType === 'article') {
+        // Kind:30023 nostr article
+        const coordinate = bookmark.id // Already in coordinate format
+        const existing = readsMap.get(coordinate)
+        
+        if (!existing) {
+          const item: ReadItem = {
+            id: coordinate,
+            source: 'bookmark',
+            type: 'article',
+            readingProgress: 0,
+            readingTimestamp: bookmark.added_at || bookmark.created_at
+          }
+          readsMap.set(coordinate, item)
+          if (onItem) emitItem(item)
+        }
+      }
+    }
+
+    // 4. Fetch full event data for nostr articles
+    const articleCoordinates = Array.from(readsMap.values())
+      .filter(item => item.type === 'article' && !item.event)
+      .map(item => item.id)
+
+    if (articleCoordinates.length > 0) {
+      console.log('📖 [Reads] Fetching article events for', articleCoordinates.length, 'articles')
+      
+      // Parse coordinates and fetch events
+      const articlesToFetch: Array<{ pubkey: string; identifier: string }> = []
+      
+      for (const coord of articleCoordinates) {
+        try {
+          // Try to decode as naddr
+          if (coord.startsWith('naddr1')) {
+            const decoded = nip19.decode(coord)
+            if (decoded.type === 'naddr' && decoded.data.kind === KINDS.BlogPost) {
+              articlesToFetch.push({
+                pubkey: decoded.data.pubkey,
+                identifier: decoded.data.identifier || ''
+              })
+            }
+          } else {
+            // Try coordinate format (kind:pubkey:identifier)
+            const parts = coord.split(':')
+            if (parts.length === 3 && parseInt(parts[0]) === KINDS.BlogPost) {
+              articlesToFetch.push({
+                pubkey: parts[1],
+                identifier: parts[2]
+              })
+            }
+          }
+        } catch (e) {
+          console.warn('Failed to decode article coordinate:', coord)
+        }
+      }
+
+      if (articlesToFetch.length > 0) {
+        const authors = Array.from(new Set(articlesToFetch.map(a => a.pubkey)))
+        const identifiers = Array.from(new Set(articlesToFetch.map(a => a.identifier)))
+        
+        const events = await queryEvents(
+          relayPool,
+          { kinds: [KINDS.BlogPost], authors, '#d': identifiers },
+          { relayUrls: RELAYS }
+        )
+
+        // Merge event data into ReadItems and emit
+        for (const event of events) {
+          const dTag = event.tags.find(t => t[0] === 'd')?.[1] || ''
+          const coordinate = `${KINDS.BlogPost}:${event.pubkey}:${dTag}`
+          
+          const item = readsMap.get(coordinate) || readsMap.get(event.id)
+          if (item) {
+            item.event = event
+            item.title = getArticleTitle(event) || 'Untitled'
+            item.summary = getArticleSummary(event)
+            item.image = getArticleImage(event)
+            item.published = getArticlePublished(event)
+            item.author = event.pubkey
+            if (onItem) emitItem(item)
+          }
+        }
+      }
+    }
+
+    // 5. Filter for Nostr articles only and apply common validation/sorting
+    const articles = Array.from(readsMap.values())
+      .filter(item => item.type === 'article')
+    
+    const validArticles = filterValidItems(articles)
+    const sortedReads = sortByReadingActivity(validArticles)
+
+    console.log('✅ [Reads] Processed', sortedReads.length, 'total reads')
+    return sortedReads
+
+  } catch (error) {
+    console.error('Failed to fetch all reads:', error)
+    return []
+  }
+}

src/services/settingsService.ts

@@ -54,6 +54,10 @@ export interface UserSettings {
   lightColorTheme?: 'paper-white' | 'sepia' | 'ivory' // default: sepia
   // Reading settings
   paragraphAlignment?: 'left' | 'justify' // default: justify
+  // Reading position sync
+  syncReadingPosition?: boolean // default: false (opt-in)
+  autoScrollToPosition?: boolean // default: true (auto-scroll to last reading position)
+  autoMarkAsReadAt100?: boolean // default: false (auto-mark as read when reaching 100% for 2 seconds)
 }
 
 export async function loadSettings(

src/styles/components/reader.css

@@ -216,7 +216,72 @@
 .mark-as-read-btn:hover:not(:disabled) { background: var(--color-border); border-color: var(--color-text-muted); transform: translateY(-1px); }
 .mark-as-read-btn:active:not(:disabled) { transform: translateY(0); }
 .mark-as-read-btn:disabled { opacity: 0.6; cursor: not-allowed; }
-.mark-as-read-btn svg { font-size: 1.1rem; }
+.mark-as-read-btn svg { font-size: 1.1rem; transition: transform 0.6s cubic-bezier(0.34, 1.56, 0.64, 1); }
+
+/* Fancy Mark as Read animation */
+@keyframes markAsReadSuccess {
+  0% {
+    background: var(--color-bg-elevated);
+    border-color: var(--color-border-subtle);
+    transform: scale(1);
+    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0);
+  }
+  10% {
+    transform: scale(1.05);
+    box-shadow: 0 0 0 8px rgba(16, 185, 129, 0.3);
+  }
+  25% {
+    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
+    border-color: #10b981;
+    color: white;
+    transform: scale(1.02);
+    box-shadow: 0 4px 20px rgba(16, 185, 129, 0.4);
+  }
+  65% {
+    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
+    border-color: #10b981;
+    color: white;
+    transform: scale(1.02);
+    box-shadow: 0 4px 20px rgba(16, 185, 129, 0.4);
+  }
+  100% {
+    background: #6b7280;
+    border-color: #6b7280;
+    color: white;
+    transform: scale(1);
+    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
+  }
+}
+
+@keyframes iconSpin {
+  0% {
+    transform: rotate(0deg) scale(1);
+  }
+  15% {
+    transform: rotate(0deg) scale(1.2);
+  }
+  50% {
+    transform: rotate(360deg) scale(1.2);
+  }
+  100% {
+    transform: rotate(360deg) scale(1);
+  }
+}
+
+.mark-as-read-btn.animating {
+  animation: markAsReadSuccess 2.5s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
+  pointer-events: none;
+}
+
+.mark-as-read-btn.animating svg {
+  animation: iconSpin 0.8s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
+}
+
+.mark-as-read-btn.marked {
+  background: #6b7280;
+  border-color: #6b7280;
+  color: white;
+}
 @media (max-width: 768px) {
   .reader {
     max-width: 100%;

src/styles/layout/sidebar.css

@@ -211,3 +211,12 @@
   background: transparent;
 }
 
+/* Reading progress filters in bookmarks sidebar - add top border, remove bottom border to avoid double border with view-mode-controls */
+.reading-progress-filters-wrapper {
+  border-top: 1px solid var(--color-border);
+}
+
+.reading-progress-filters-wrapper .bookmark-filters {
+  border-bottom: none;
+}
+

src/utils/linksFromBookmarks.ts

@@ -0,0 +1,69 @@
+import { Bookmark } from '../types/bookmarks'
+import { ReadItem } from '../services/readsService'
+import { KINDS } from '../config/kinds'
+import { fallbackTitleFromUrl } from './readItemMerge'
+
+/**
+ * Derives ReadItems from bookmarks for external URLs:
+ * - Web bookmarks (kind:39701)
+ * - Any bookmark with http(s) URLs in content or urlReferences
+ */
+export function deriveLinksFromBookmarks(bookmarks: Bookmark[]): ReadItem[] {
+  const linksMap = new Map<string, ReadItem>()
+  
+  const allBookmarks = bookmarks.flatMap(b => b.individualBookmarks || [])
+  
+  for (const bookmark of allBookmarks) {
+    const urls: string[] = []
+    
+    // Web bookmarks (kind:39701) - extract from 'd' tag
+    if (bookmark.kind === KINDS.WebBookmark) {
+      const dTag = bookmark.tags.find(t => t[0] === 'd')?.[1]
+      if (dTag) {
+        const url = dTag.startsWith('http') ? dTag : `https://${dTag}`
+        urls.push(url)
+      }
+    }
+    
+    // Extract URLs from content if not already captured
+    if (bookmark.content) {
+      const urlRegex = /(https?:\/\/[^\s]+)/g
+      const matches = bookmark.content.match(urlRegex)
+      if (matches) {
+        urls.push(...matches)
+      }
+    }
+    
+    // Extract metadata from tags (for web bookmarks and other types)
+    const title = bookmark.tags.find(t => t[0] === 'title')?.[1]
+    const summary = bookmark.tags.find(t => t[0] === 'summary')?.[1]
+    const image = bookmark.tags.find(t => t[0] === 'image')?.[1]
+    
+    // Create ReadItem for each unique URL
+    for (const url of [...new Set(urls)]) {
+      if (!linksMap.has(url)) {
+        const item: ReadItem = {
+          id: url,
+          source: 'bookmark',
+          type: 'external',
+          url,
+          title: title || fallbackTitleFromUrl(url),
+          summary,
+          image,
+          readingProgress: 0,
+          readingTimestamp: bookmark.added_at || bookmark.created_at
+        }
+        
+        linksMap.set(url, item)
+      }
+    }
+  }
+  
+  // Sort by most recent bookmark activity
+  return Array.from(linksMap.values()).sort((a, b) => {
+    const timeA = a.readingTimestamp || 0
+    const timeB = b.readingTimestamp || 0
+    return timeB - timeA
+  })
+}
+

src/utils/readItemMerge.ts

@@ -0,0 +1,83 @@
+import { ReadItem } from '../services/readsService'
+
+/**
+ * Merges a ReadItem into a state map, returning whether the state changed.
+ * Uses most recent reading activity to determine precedence.
+ */
+export function mergeReadItem(
+  stateMap: Map<string, ReadItem>,
+  incoming: ReadItem
+): boolean {
+  const existing = stateMap.get(incoming.id)
+  
+  if (!existing) {
+    stateMap.set(incoming.id, incoming)
+    return true
+  }
+  
+  // Always merge if incoming has reading progress data
+  const hasNewProgress = incoming.readingProgress !== undefined && 
+    (existing.readingProgress === undefined || existing.readingProgress !== incoming.readingProgress)
+  
+  const hasNewMarkedAsRead = incoming.markedAsRead !== undefined && existing.markedAsRead === undefined
+  
+  // Merge by taking the most recent reading activity
+  const existingTime = existing.readingTimestamp || existing.markedAt || 0
+  const incomingTime = incoming.readingTimestamp || incoming.markedAt || 0
+  
+  if (incomingTime > existingTime || hasNewProgress || hasNewMarkedAsRead) {
+    // Keep existing data, but update with newer reading metadata
+    stateMap.set(incoming.id, {
+      ...existing,
+      ...incoming,
+      // Preserve event data if incoming doesn't have it
+      event: incoming.event || existing.event,
+      title: incoming.title || existing.title,
+      summary: incoming.summary || existing.summary,
+      image: incoming.image || existing.image,
+      published: incoming.published || existing.published,
+      author: incoming.author || existing.author,
+      // Always take reading progress if available
+      readingProgress: incoming.readingProgress !== undefined ? incoming.readingProgress : existing.readingProgress,
+      readingTimestamp: incomingTime > existingTime ? incoming.readingTimestamp : existing.readingTimestamp
+    })
+    return true
+  }
+  
+  // If timestamps are equal but incoming has additional data, merge it
+  if (incomingTime === existingTime && (!existing.event && incoming.event || !existing.title && incoming.title)) {
+    stateMap.set(incoming.id, {
+      ...existing,
+      ...incoming,
+      event: incoming.event || existing.event,
+      title: incoming.title || existing.title,
+      summary: incoming.summary || existing.summary,
+      image: incoming.image || existing.image,
+      published: incoming.published || existing.published,
+      author: incoming.author || existing.author
+    })
+    return true
+  }
+  
+  return false
+}
+
+/**
+ * Extracts a readable title from a URL when no title is available.
+ * Removes protocol, www, and shows domain + path.
+ */
+export function fallbackTitleFromUrl(url: string): string {
+  try {
+    const parsed = new URL(url)
+    let title = parsed.hostname.replace(/^www\./, '')
+    if (parsed.pathname && parsed.pathname !== '/') {
+      const path = parsed.pathname.slice(0, 40)
+      title += path.length < parsed.pathname.length ? path + '...' : path
+    }
+    return title
+  } catch {
+    // If URL parsing fails, just return the URL truncated
+    return url.length > 50 ? url.slice(0, 47) + '...' : url
+  }
+}
+

src/utils/readingProgressUtils.ts

@@ -0,0 +1,30 @@
+import { ReadItem } from '../services/readsService'
+import { ReadingProgressFilterType } from '../components/ReadingProgressFilters'
+
+/**
+ * Filters ReadItems by reading progress
+ */
+export function filterByReadingProgress(
+  items: ReadItem[],
+  filter: ReadingProgressFilterType
+): ReadItem[] {
+  return items.filter((item) => {
+    const progress = item.readingProgress || 0
+    const isMarked = item.markedAsRead || false
+    
+    switch (filter) {
+      case 'unopened':
+        return progress === 0 && !isMarked
+      case 'started':
+        return progress > 0 && progress <= 0.10 && !isMarked
+      case 'reading':
+        return progress > 0.10 && progress <= 0.94 && !isMarked
+      case 'completed':
+        return progress >= 0.95 || isMarked
+      case 'all':
+      default:
+        return true
+    }
+  })
+}
+

src/utils/readsFromBookmarks.ts

@@ -0,0 +1,71 @@
+import { Bookmark } from '../types/bookmarks'
+import { ReadItem } from '../services/readsService'
+import { classifyBookmarkType } from './bookmarkTypeClassifier'
+import { KINDS } from '../config/kinds'
+import { nip19 } from 'nostr-tools'
+
+/**
+ * Derives ReadItems from bookmarks for Nostr articles (kind:30023).
+ * Returns items with type='article', using hydrated data when available.
+ * Note: After hydration, article titles are in bookmark.content, metadata in tags.
+ */
+export function deriveReadsFromBookmarks(bookmarks: Bookmark[]): ReadItem[] {
+  const readsMap = new Map<string, ReadItem>()
+  
+  const allBookmarks = bookmarks.flatMap(b => b.individualBookmarks || [])
+  
+  for (const bookmark of allBookmarks) {
+    const bookmarkType = classifyBookmarkType(bookmark)
+    
+    // Only include articles (kind:30023)
+    if (bookmarkType === 'article' && bookmark.kind === KINDS.BlogPost) {
+      const coordinate = bookmark.id // coordinate format: kind:pubkey:identifier
+      
+      // Extract identifier from coordinate
+      const parts = coordinate.split(':')
+      const identifier = parts[2] || ''
+      
+      // Convert to naddr format (reading positions use naddr as ID)
+      let naddr: string
+      try {
+        naddr = nip19.naddrEncode({
+          kind: KINDS.BlogPost,
+          pubkey: bookmark.pubkey,
+          identifier
+        })
+      } catch (e) {
+        console.warn('Failed to encode naddr for bookmark:', coordinate)
+        continue
+      }
+      
+      // Extract metadata from tags (same as BookmarkItem does)
+      const title = bookmark.content || 'Untitled'
+      const image = bookmark.tags.find(t => t[0] === 'image')?.[1]
+      const summary = bookmark.tags.find(t => t[0] === 'summary')?.[1]
+      const published = bookmark.tags.find(t => t[0] === 'published_at')?.[1]
+      
+      const item: ReadItem = {
+        id: naddr, // Use naddr format to match reading positions
+        source: 'bookmark',
+        type: 'article',
+        readingProgress: 0,
+        readingTimestamp: bookmark.added_at || bookmark.created_at,
+        title,
+        summary,
+        image,
+        published: published ? parseInt(published) : undefined,
+        author: bookmark.pubkey
+      }
+      
+      readsMap.set(naddr, item)
+    }
+  }
+  
+  // Sort by most recent bookmark activity
+  return Array.from(readsMap.values()).sort((a, b) => {
+    const timeA = a.readingTimestamp || 0
+    const timeB = b.readingTimestamp || 0
+    return timeB - timeA
+  })
+}
+