diff --git a/core/Sources/BookmarksCore/Model/ItemViewModel.swift b/core/Sources/BookmarksCore/Model/ItemViewModel.swift
index aa4d5393..ac83166e 100644
--- a/core/Sources/BookmarksCore/Model/ItemViewModel.swift
+++ b/core/Sources/BookmarksCore/Model/ItemViewModel.swift
@@ -18,6 +18,8 @@
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 // SOFTWARE.
 
+#if os(macOS)
+
 import Combine
 import SwiftUI
 
@@ -25,7 +27,7 @@ import Interact
 
 class ItemViewModel: ObservableObject, Runnable {
 
-    let store: Store
+    let extensionModel: SafariExtensionModel
     let pinboard: Pinboard
 
     let tab: Tab
@@ -36,13 +38,11 @@ class ItemViewModel: ObservableObject, Runnable {
     @Published var suggestions: [String] = []
 
     @Published var tokens: [String] = []
-    @Published var input: String = ""
-    @Published var newSuggestions: [String] = []
 
     var cancellables: [AnyCancellable] = []
 
-    init(store: Store, pinboard: Pinboard, tab: Tab) {
-        self.store = store
+    init(extensionModel: SafariExtensionModel, pinboard: Pinboard, tab: Tab) {
+        self.extensionModel = extensionModel
         self.pinboard = pinboard
         self.tab = tab
         self.title = tab.title
@@ -69,14 +69,6 @@ class ItemViewModel: ObservableObject, Runnable {
             }
         }
 
-        $input
-            .debounce(for: 0.1, scheduler: DispatchQueue.main)
-            .filter { !$0.isEmpty }
-            .receive(on: DispatchQueue.main)
-            .map { [store] in store.suggestions(prefix: $0, existing: [], count: 1) }
-            .assign(to: \.newSuggestions, on: self)
-            .store(in: &cancellables)
-
     }
 
     func stop() {
@@ -91,7 +83,7 @@ class ItemViewModel: ObservableObject, Runnable {
                     post.tags = tokens
                     _ = try await pinboard.postsAdd(post)
                     DispatchQueue.main.async {
-                        self.store.close(self.tab)
+                        self.extensionModel.close(self.tab)
                     }
                 } else {
                     let post = Pinboard.Post(href: self.tab.url,
@@ -99,7 +91,7 @@ class ItemViewModel: ObservableObject, Runnable {
                                              tags: tokens)
                     _ = try await pinboard.postsAdd(post)
                     DispatchQueue.main.async {
-                        self.store.close(self.tab)
+                        self.extensionModel.close(self.tab)
                     }
                 }
             } catch {
@@ -110,18 +102,20 @@ class ItemViewModel: ObservableObject, Runnable {
 
     func close() {
         withAnimation {
-            store.close(tab)
+            extensionModel.close(tab)
         }
     }
 
     func remove() {
         withAnimation {
-            store.close(tab)
+            extensionModel.close(tab)
         }
     }
 
     func activate() {
-        store.activate(tab)
+        extensionModel.activate(tab)
     }
 
 }
+
+#endif
diff --git a/core/Sources/BookmarksCore/Model/SafariExtensionModel.swift b/core/Sources/BookmarksCore/Model/SafariExtensionModel.swift
index a8563c74..8a4fb3d4 100644
--- a/core/Sources/BookmarksCore/Model/SafariExtensionModel.swift
+++ b/core/Sources/BookmarksCore/Model/SafariExtensionModel.swift
@@ -23,13 +23,16 @@
 import SafariServices
 import SwiftUI
 
-public class SafariExtensionModel: ObservableObject, Store {
+public class SafariExtensionModel: ObservableObject {
 
     let settings = Settings()
+    let tagsModel: TagsModel
 
     @Published public var tabs: [Tab] = []
 
-    var tags = Trie()
+    private static let database: Database = {
+        try! Database(path: Database.sharedStoreURL)
+    }()
 
     public var pinboard: Pinboard? {
         guard let apiKey = settings.pinboardApiKey else {
@@ -39,29 +42,12 @@ public class SafariExtensionModel: ObservableObject, Store {
     }
 
     public init() {
-
-    }
-
-    public func update() {
-        // TODO: Show the authentication state to the user.
-        guard let pinboard = pinboard else {
-            return
-        }
-        Task {
-            do {
-                let tags = try await pinboard.tagsGet()
-                let trie = Trie(words: tags.keys.map({ $0.lowercased() }))
-                DispatchQueue.main.async {
-                    self.tags = trie
-                }
-            } catch {
-                NSLog("Failed to get tags with error \(error)")
-            }
-        }
+        self.tagsModel = TagsModel(database: Self.database)
+        tagsModel.start()
     }
 
-    public func suggestions(prefix: String, existing: [String], count: Int) -> [String] {
-        tags.suggestions(for: prefix, count: count)
+    @MainActor public func suggestions(prefix: String, existing: [String], count: Int) -> [String] {
+        return tagsModel.suggestions(candidate: prefix, existing: existing, count: count)
     }
 
     public func close(_ tab: Tab) {
diff --git a/core/Sources/BookmarksCore/Model/Store.swift b/core/Sources/BookmarksCore/Model/Store.swift
deleted file mode 100644
index 147044ba..00000000
--- a/core/Sources/BookmarksCore/Model/Store.swift
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2020-2023 InSeven Limited
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-//
-// The above copyright notice and this permission notice shall be included in all
-// copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-// SOFTWARE.
-
-import Combine
-import SwiftUI
-
-public protocol Store {
-
-    func close(_ tab: Tab)
-    func activate(_ tab: Tab)
-    func suggestions(prefix: String, existing: [String], count: Int) -> [String]
-
-}
diff --git a/core/Sources/BookmarksCore/Views/ItemView.swift b/core/Sources/BookmarksCore/Views/ItemView.swift
index 7edb8158..c903429b 100644
--- a/core/Sources/BookmarksCore/Views/ItemView.swift
+++ b/core/Sources/BookmarksCore/Views/ItemView.swift
@@ -26,14 +26,14 @@ import WrappingHStack
 
 public struct ItemView: View {
 
-    let store: Store
+    var extensionModel: SafariExtensionModel
 
     @StateObject var model: ItemViewModel
     @State var title: String? = nil
 
-    public init(store: Store, pinboard: Pinboard, tab: Tab) {
-        self.store = store
-        _model = StateObject(wrappedValue: ItemViewModel(store: store, pinboard: pinboard, tab: tab))
+    public init(extensionModel: SafariExtensionModel, pinboard: Pinboard, tab: Tab) {
+        self.extensionModel = extensionModel
+        _model = StateObject(wrappedValue: ItemViewModel(extensionModel: extensionModel, pinboard: pinboard, tab: tab))
     }
 
     struct LayoutMetrics {
@@ -62,7 +62,7 @@ public struct ItemView: View {
                 Divider()
 
                 TokenView("Add tags...", tokens: $model.tokens) { candidate, existing, count in
-                    return store.suggestions(prefix: candidate, existing: existing, count: count)
+                    return extensionModel.suggestions(prefix: candidate, existing: existing, count: count)
                 }
                 .padding(.horizontal, 6)
 
diff --git a/macos/SafariExtension/ContentView.swift b/macos/SafariExtension/ContentView.swift
index e067e2fb..c5ffae5d 100644
--- a/macos/SafariExtension/ContentView.swift
+++ b/macos/SafariExtension/ContentView.swift
@@ -34,7 +34,7 @@ struct ContentView: View {
         List {
             if let pinboard = extensionModel.pinboard {
                 ForEach(Array(extensionModel.tabs)) { tab in
-                    ItemView(store: extensionModel, pinboard: pinboard, tab: tab)
+                    ItemView(extensionModel: extensionModel, pinboard: pinboard, tab: tab)
                     Divider()
                 }
             } else {