diff --git a/ActionExtension-iOS/ContentView.swift b/ActionExtension-iOS/ContentView.swift
index 0d38361..3e7b0d6 100644
--- a/ActionExtension-iOS/ContentView.swift
+++ b/ActionExtension-iOS/ContentView.swift
@@ -1,199 +1,198 @@
 import SwiftUI
 import MobileCoreServices
 import UniformTypeIdentifiers
 import WriteFreely
 
 enum WFActionExtensionError: Error {
     case userCancelledRequest
     case couldNotParseInputItems
 }
 
 struct ContentView: View {
     @Environment(\.extensionContext) private var extensionContext: NSExtensionContext!
     @Environment(\.managedObjectContext) private var managedObjectContext
 
     @AppStorage(WFDefaults.defaultFontIntegerKey, store: UserDefaults.shared) var fontIndex: Int = 0
 
     @FetchRequest(
         entity: WFACollection.entity(),
         sortDescriptors: [NSSortDescriptor(keyPath: \WFACollection.title, ascending: true)]
     ) var collections: FetchedResults<WFACollection>
 
     @State private var draftTitle: String = ""
     @State private var draftText: String = ""
     @State private var isShowingAlert: Bool = false
     @State private var selectedBlog: WFACollection?
 
     private var draftsCollectionName: String {
         guard UserDefaults.shared.string(forKey: WFDefaults.serverStringKey) == "https://write.as" else {
             return "Drafts"
         }
         return "Anonymous"
     }
 
     private var controls: some View {
             HStack {
                 Group {
                 Button(
                     action: { extensionContext.cancelRequest(withError: WFActionExtensionError.userCancelledRequest) },
                     label: { Image(systemName: "xmark.circle").imageScale(.large) }
                 )
                 .accessibilityLabel(Text("Cancel"))
                 Spacer()
                 Button(
                     action: {
                         savePostToCollection(collection: selectedBlog, title: draftTitle, body: draftText)
                         extensionContext.completeRequest(returningItems: nil, completionHandler: nil)
                     },
                     label: { Image(systemName: "square.and.arrow.down").imageScale(.large) }
                 )
                 .accessibilityLabel(Text("Create new draft"))
                 }
                 .padding()
             }
     }
 
     var body: some View {
         VStack {
             controls
             Form {
                 Section(header: Text("Title")) {
                     switch fontIndex {
                     case 1:
                         TextField("Draft Title", text: $draftTitle).font(.custom("OpenSans-Regular", size: 26))
                     case 2:
                         TextField("Draft Title", text: $draftTitle).font(.custom("Hack-Regular", size: 26))
                     default:
                         TextField("Draft Title", text: $draftTitle).font(.custom("Lora", size: 26))
                     }
                 }
                 Section(header: Text("Content")) {
                     switch fontIndex {
                     case 1:
                         TextEditor(text: $draftText).font(.custom("OpenSans-Regular", size: 17))
                     case 2:
                         TextEditor(text: $draftText).font(.custom("Hack-Regular", size: 17))
                     default:
                         TextEditor(text: $draftText).font(.custom("Lora", size: 17))
                     }
                 }
                 Section(header: Text("Save To")) {
                     Button(action: {
                         self.selectedBlog = nil
                     }, label: {
                         HStack {
                             Text(draftsCollectionName)
                                 .foregroundColor(selectedBlog == nil ? .primary : .secondary)
                             Spacer()
                             if selectedBlog == nil {
                                 Image(systemName: "checkmark")
                             }
                         }
                     })
                     ForEach(collections, id: \.self) { collection in
                         Button(action: {
                             self.selectedBlog = collection
                         }, label: {
                             HStack {
                                 Text(collection.title)
                                     .foregroundColor(selectedBlog == collection ? .primary : .secondary)
                                 Spacer()
                                 if selectedBlog == collection {
                                     Image(systemName: "checkmark")
                                 }
                             }
                         })
                     }
                 }
             }
             .padding(.bottom, 24)
         }
         .alert(isPresented: $isShowingAlert, content: {
             Alert(
                 title: Text("Something Went Wrong"),
                 message: Text("WriteFreely can't create a draft with the data received."),
                 dismissButton: .default(Text("OK"), action: {
                     extensionContext.cancelRequest(withError: WFActionExtensionError.couldNotParseInputItems)
                 }))
         })
         .onAppear {
             do {
                 try getPageDataFromExtensionContext()
             } catch {
                 self.isShowingAlert = true
             }
         }
     }
 
     private func savePostToCollection(collection: WFACollection?, title: String, body: String) {
         let post = WFAPost(context: managedObjectContext)
         post.createdDate = Date()
         post.title = title
         post.body = body
         post.status = PostStatus.local.rawValue
         post.collectionAlias = collection?.alias
         switch fontIndex {
         case 1:
             post.appearance = "sans"
         case 2:
             post.appearance = "wrap"
         default:
             post.appearance = "serif"
         }
         if let languageCode = Locale.current.languageCode {
             post.language = languageCode
             post.rtl = Locale.characterDirection(forLanguage: languageCode) == .rightToLeft
         }
         LocalStorageManager.standard.saveContext()
     }
 
     private func getPageDataFromExtensionContext() throws {
         if let inputItem = extensionContext.inputItems.first as? NSExtensionItem {
             if let itemProvider = inputItem.attachments?.first {
 
                 let typeIdentifier: String
 
                 if #available(iOS 15, *) {
                     typeIdentifier = UTType.propertyList.identifier
                 } else {
                     typeIdentifier = kUTTypePropertyList as String
                 }
 
                 itemProvider.loadItem(forTypeIdentifier: typeIdentifier) { (dict, error) in
-                    if let error = error {
-                        print("⚠️", error)
+                    if error != nil {
                         self.isShowingAlert = true
                     }
 
                     guard let itemDict = dict as? NSDictionary else {
                         return
                     }
                     guard let jsValues = itemDict[NSExtensionJavaScriptPreprocessingResultsKey] as? NSDictionary else {
                         return
                     }
 
                     let pageTitle = jsValues["title"] as? String ?? ""
                     let pageURL = jsValues["URL"] as? String ?? ""
                     let pageSelectedText = jsValues["selection"] as? String ?? ""
 
                     if pageSelectedText.isEmpty {
                         // If there's no selected text, create a Markdown link to the webpage.
                         self.draftText = "[\(pageTitle)](\(pageURL))"
                     } else {
                         // If there is selected text, create a Markdown blockquote with the selection
                         // and add a Markdown link to the webpage.
                         self.draftText = """
                         > \(pageSelectedText)
 
                         Via: [\(pageTitle)](\(pageURL))
                         """
                     }
                 }
             } else {
                 throw WFActionExtensionError.couldNotParseInputItems
             }
         } else {
             throw WFActionExtensionError.couldNotParseInputItems
         }
     }
 }
diff --git a/Shared/Account/AccountLoginView.swift b/Shared/Account/AccountLoginView.swift
index 8284b95..64e7971 100644
--- a/Shared/Account/AccountLoginView.swift
+++ b/Shared/Account/AccountLoginView.swift
@@ -1,106 +1,99 @@
 import SwiftUI
 
 struct AccountLoginView: View {
     @EnvironmentObject var model: WriteFreelyModel
+    @EnvironmentObject var errorHandling: ErrorHandling
 
     @State private var alertMessage: String = ""
     @State private var username: String = ""
     @State private var password: String = ""
     @State private var server: String = ""
     var body: some View {
         VStack {
             Text("Log in to publish and share your posts.")
                 .font(.caption)
                 .foregroundColor(.secondary)
             HStack {
                 Image(systemName: "person.circle")
                     .foregroundColor(.gray)
                 #if os(iOS)
                 TextField("Username", text: $username)
                     .autocapitalization(.none)
                     .disableAutocorrection(true)
                     .textFieldStyle(RoundedBorderTextFieldStyle())
                 #else
                 TextField("Username", text: $username)
                 #endif
             }
             HStack {
                 Image(systemName: "lock.circle")
                     .foregroundColor(.gray)
                 #if os(iOS)
                 SecureField("Password", text: $password)
                     .autocapitalization(.none)
                     .disableAutocorrection(true)
                     .textFieldStyle(RoundedBorderTextFieldStyle())
                 #else
                 SecureField("Password", text: $password)
                 #endif
             }
             HStack {
                 Image(systemName: "link.circle")
                     .foregroundColor(.gray)
                 #if os(iOS)
                 TextField("Server URL", text: $server)
                     .keyboardType(.URL)
                     .autocapitalization(.none)
                     .disableAutocorrection(true)
                     .textFieldStyle(RoundedBorderTextFieldStyle())
                 #else
                 TextField("Server URL", text: $server)
                 #endif
             }
             Spacer()
             if model.isLoggingIn {
                 ProgressView("Logging in...")
                     .padding()
             } else {
                 Button(action: {
                     #if os(iOS)
                     hideKeyboard()
                     #endif
                     // If the server string is not prefixed with a scheme, prepend "https://" to it.
                     if !(server.hasPrefix("https://") || server.hasPrefix("http://")) {
                         server = "https://\(server)"
                     }
                     // We only need the protocol and host from the URL, so drop anything else.
                     let url = URLComponents(string: server)
                     if let validURL = url {
                         let scheme = validURL.scheme
                         let host = validURL.host
                         var hostURL = URLComponents()
                         hostURL.scheme = scheme
                         hostURL.host = host
                         server = hostURL.string ?? server
                         model.login(
                             to: URL(string: server)!,
                             as: username, password: password
                         )
                     } else {
-                        model.loginErrorMessage = AccountError.invalidServerURL.localizedDescription
-                        model.isPresentingLoginErrorAlert = true
+                        self.errorHandling.handle(error: AccountError.invalidServerURL)
                     }
                 }, label: {
                     Text("Log In")
                 })
                 .disabled(
                     model.account.isLoggedIn || (username.isEmpty || password.isEmpty || server.isEmpty)
                 )
                 .padding()
             }
         }
-        .alert(isPresented: $model.isPresentingLoginErrorAlert) {
-            Alert(
-                title: Text("Error Logging In"),
-                message: Text(model.loginErrorMessage ?? "An unknown error occurred while trying to login."),
-                dismissButton: .default(Text("OK"))
-            )
-        }
     }
 }
 
 struct AccountLoginView_Previews: PreviewProvider {
     static var previews: some View {
         AccountLoginView()
             .environmentObject(WriteFreelyModel())
     }
 }
diff --git a/Shared/Account/AccountLogoutView.swift b/Shared/Account/AccountLogoutView.swift
index 22df2da..d972f70 100644
--- a/Shared/Account/AccountLogoutView.swift
+++ b/Shared/Account/AccountLogoutView.swift
@@ -1,80 +1,81 @@
 import SwiftUI
 
 struct AccountLogoutView: View {
     @EnvironmentObject var model: WriteFreelyModel
+    @EnvironmentObject var errorHandling: ErrorHandling
 
     @State private var isPresentingLogoutConfirmation: Bool = false
     @State private var editedPostsWarningString: String = ""
 
     var body: some View {
         #if os(iOS)
         VStack {
             Spacer()
             VStack {
                 Text("Logged in as \(model.account.username)")
                 Text("on \(model.account.server)")
             }
             Spacer()
             Button(action: logoutHandler, label: {
                 Text("Log Out")
             })
         }
         .actionSheet(isPresented: $isPresentingLogoutConfirmation, content: {
             ActionSheet(
                 title: Text("Log Out?"),
                 message: Text("\(editedPostsWarningString)You won't lose any local posts. Are you sure?"),
                 buttons: [
                     .destructive(Text("Log Out"), action: {
                         model.logout()
                     }),
                     .cancel()
                 ]
             )
         })
         #else
         VStack {
             Spacer()
             VStack {
                 Text("Logged in as \(model.account.username)")
                 Text("on \(model.account.server)")
             }
             Spacer()
             Button(action: logoutHandler, label: {
                 Text("Log Out")
             })
         }
         .alert(isPresented: $isPresentingLogoutConfirmation) {
             Alert(
                 title: Text("Log Out?"),
                 message: Text("\(editedPostsWarningString)You won't lose any local posts. Are you sure?"),
                 primaryButton: .cancel(Text("Cancel"), action: { self.isPresentingLogoutConfirmation = false }),
                 secondaryButton: .destructive(Text("Log Out"), action: model.logout )
             )
         }
         #endif
     }
 
     func logoutHandler() {
         let request = WFAPost.createFetchRequest()
         request.predicate = NSPredicate(format: "status == %i", 1)
         do {
             let editedPosts = try LocalStorageManager.standard.container.viewContext.fetch(request)
             if editedPosts.count == 1 {
                 editedPostsWarningString = "You'll lose unpublished changes to \(editedPosts.count) edited post. "
             }
             if editedPosts.count > 1 {
                 editedPostsWarningString = "You'll lose unpublished changes to \(editedPosts.count) edited posts. "
             }
         } catch {
-            print("Error: failed to fetch cached posts")
+            self.errorHandling.handle(error: LocalStoreError.couldNotFetchPosts("cached"))
         }
         self.isPresentingLogoutConfirmation = true
     }
 }
 
 struct AccountLogoutView_Previews: PreviewProvider {
     static var previews: some View {
         AccountLogoutView()
             .environmentObject(WriteFreelyModel())
     }
 }
diff --git a/Shared/Account/AccountModel.swift b/Shared/Account/AccountModel.swift
index 94171ec..25103ba 100644
--- a/Shared/Account/AccountModel.swift
+++ b/Shared/Account/AccountModel.swift
@@ -1,84 +1,32 @@
 import SwiftUI
 import WriteFreely
 
-enum AccountError: Error {
-    case invalidPassword
-    case usernameNotFound
-    case serverNotFound
-    case invalidServerURL
-    case couldNotSaveTokenToKeychain
-    case couldNotFetchTokenFromKeychain
-    case couldNotDeleteTokenFromKeychain
-}
-
-extension AccountError: LocalizedError {
-    public var errorDescription: String? {
-        switch self {
-        case .serverNotFound:
-            return NSLocalizedString(
-                "The server could not be found. Please check the information you've entered and try again.",
-                comment: ""
-            )
-        case .invalidPassword:
-            return NSLocalizedString(
-                "Invalid password. Please check that you've entered your password correctly and try logging in again.",
-                comment: ""
-            )
-        case .usernameNotFound:
-            return NSLocalizedString(
-                "Username not found. Did you use your email address by mistake?",
-                comment: ""
-            )
-        case .invalidServerURL:
-            return NSLocalizedString(
-                "Please enter a valid instance domain name. It should look like \"https://example.com\" or \"write.as\".",  // swiftlint:disable:this line_length
-                comment: ""
-            )
-        case .couldNotSaveTokenToKeychain:
-            return NSLocalizedString(
-                "There was a problem trying to save your access token to the device, please try logging in again.",
-                comment: ""
-            )
-        case .couldNotFetchTokenFromKeychain:
-            return NSLocalizedString(
-                "There was a problem trying to fetch your access token from the device, please try logging in again.",
-                comment: ""
-            )
-        case .couldNotDeleteTokenFromKeychain:
-            return NSLocalizedString(
-                "There was a problem trying to delete your access token from the device, please try logging out again.",
-                comment: ""
-            )
-        }
-    }
-}
-
 struct AccountModel {
     @AppStorage(WFDefaults.isLoggedIn, store: UserDefaults.shared) var isLoggedIn: Bool = false
     private let defaults = UserDefaults.shared
 
     var server: String = ""
     var username: String = ""
 
     private(set) var user: WFUser?
 
     mutating func login(_ user: WFUser) {
         self.user = user
         self.username = user.username ?? ""
         self.isLoggedIn = true
         defaults.set(user.username, forKey: WFDefaults.usernameStringKey)
         defaults.set(server, forKey: WFDefaults.serverStringKey)
     }
 
     mutating func logout() {
         self.user = nil
         self.isLoggedIn = false
         defaults.removeObject(forKey: WFDefaults.usernameStringKey)
         defaults.removeObject(forKey: WFDefaults.serverStringKey)
     }
 
     mutating func restoreState() {
         server = defaults.string(forKey: WFDefaults.serverStringKey) ?? ""
         username = defaults.string(forKey: WFDefaults.usernameStringKey) ?? ""
     }
 }
diff --git a/Shared/Account/AccountView.swift b/Shared/Account/AccountView.swift
index 4ff4527..0b54f0e 100644
--- a/Shared/Account/AccountView.swift
+++ b/Shared/Account/AccountView.swift
@@ -1,26 +1,40 @@
 import SwiftUI
 
 struct AccountView: View {
     @EnvironmentObject var model: WriteFreelyModel
+    @EnvironmentObject var errorHandling: ErrorHandling
 
     var body: some View {
         if model.account.isLoggedIn {
             HStack {
                 Spacer()
                 AccountLogoutView()
+                    .withErrorHandling()
                 Spacer()
             }
             .padding()
         } else {
             AccountLoginView()
+                .withErrorHandling()
                 .padding(.top)
         }
+        EmptyView()
+            .onChange(of: model.hasError) { value in
+                if value {
+                    if let error = model.currentError {
+                        self.errorHandling.handle(error: error)
+                    } else {
+                        self.errorHandling.handle(error: AppError.genericError())
+                    }
+                    model.hasError = false
+                }
+            }
     }
 }
 
 struct AccountLogin_Previews: PreviewProvider {
     static var previews: some View {
         AccountView()
             .environmentObject(WriteFreelyModel())
     }
 }
diff --git a/Shared/ErrorHandling/ErrorConstants.swift b/Shared/ErrorHandling/ErrorConstants.swift
new file mode 100644
index 0000000..88ae92b
--- /dev/null
+++ b/Shared/ErrorHandling/ErrorConstants.swift
@@ -0,0 +1,173 @@
+import Foundation
+
+// MARK: - Network Errors
+
+enum NetworkError: Error {
+    case noConnectionError
+}
+
+extension NetworkError: LocalizedError {
+    public var errorDescription: String? {
+        switch self {
+        case .noConnectionError:
+            return NSLocalizedString(
+                "There is no internet connection at the moment. Please reconnect or try again later.",
+                comment: ""
+            )
+        }
+    }
+}
+
+// MARK: - Keychain Errors
+
+enum KeychainError: Error {
+    case couldNotStoreAccessToken
+    case couldNotPurgeAccessToken
+    case couldNotFetchAccessToken
+}
+
+extension KeychainError: LocalizedError {
+    public var errorDescription: String? {
+        switch self {
+        case .couldNotStoreAccessToken:
+            return NSLocalizedString("There was a problem storing your access token in the Keychain.", comment: "")
+        case .couldNotPurgeAccessToken:
+            return NSLocalizedString("Something went wrong purging the token from the Keychain.", comment: "")
+        case .couldNotFetchAccessToken:
+            return NSLocalizedString("Something went wrong fetching the token from the Keychain.", comment: "")
+        }
+    }
+}
+
+// MARK: - Account Errors
+
+enum AccountError: Error {
+    case invalidPassword
+    case usernameNotFound
+    case serverNotFound
+    case invalidServerURL
+    case unknownLoginError
+    case genericAuthError
+}
+
+extension AccountError: LocalizedError {
+    public var errorDescription: String? {
+        switch self {
+        case .serverNotFound:
+            return NSLocalizedString(
+                "The server could not be found. Please check the information you've entered and try again.",
+                comment: ""
+            )
+        case .invalidPassword:
+            return NSLocalizedString(
+                "Invalid password. Please check that you've entered your password correctly and try logging in again.",
+                comment: ""
+            )
+        case .usernameNotFound:
+            return NSLocalizedString(
+                "Username not found. Did you use your email address by mistake?",
+                comment: ""
+            )
+        case .invalidServerURL:
+            return NSLocalizedString(
+                "Please enter a valid instance domain name. It should look like \"https://example.com\" or \"write.as\".",  // swiftlint:disable:this line_length
+                comment: ""
+            )
+        case .genericAuthError:
+            return NSLocalizedString("Something went wrong, please try logging in again.", comment: "")
+        case .unknownLoginError:
+            return NSLocalizedString("An unknown error occurred while trying to login.", comment: "")
+        }
+    }
+}
+
+// MARK: - User Defaults Errors
+
+enum UserDefaultsError: Error {
+    case couldNotMigrateStandardDefaults
+}
+
+extension UserDefaultsError: LocalizedError {
+    public var errorDescription: String? {
+        switch self {
+        case .couldNotMigrateStandardDefaults:
+            return NSLocalizedString("Could not migrate user defaults to group container", comment: "")
+        }
+    }
+}
+
+// MARK: - Local Store Errors
+
+enum LocalStoreError: Error {
+    case couldNotSaveContext
+    case couldNotFetchCollections
+    case couldNotFetchPosts(String = "")
+    case couldNotPurgePosts(String = "")
+    case couldNotPurgeCollections
+    case couldNotLoadStore(String)
+    case couldNotMigrateStore(String)
+    case couldNotDeleteStoreAfterMigration(String)
+    case genericError(String = "")
+}
+
+extension LocalStoreError: LocalizedError {
+    public var errorDescription: String? {
+        switch self {
+        case .couldNotSaveContext:
+            return NSLocalizedString("Error saving context", comment: "")
+        case .couldNotFetchCollections:
+            return NSLocalizedString("Failed to fetch blogs from local store.", comment: "")
+        case .couldNotFetchPosts(let postFilter):
+            if postFilter.isEmpty {
+                return NSLocalizedString("Failed to fetch posts from local store.", comment: "")
+            } else {
+                return NSLocalizedString("Failed to fetch \(postFilter) posts from local store.", comment: "")
+            }
+        case .couldNotPurgePosts(let postFilter):
+            if postFilter.isEmpty {
+                return NSLocalizedString("Failed to purge \(postFilter) posts from local store.", comment: "")
+            } else {
+                return NSLocalizedString("Failed to purge posts from local store.", comment: "")
+            }
+        case .couldNotPurgeCollections:
+            return NSLocalizedString("Failed to purge cached collections", comment: "")
+        case .couldNotLoadStore(let errorDescription):
+            return NSLocalizedString("Something went wrong loading local store: \(errorDescription)", comment: "")
+        case .couldNotMigrateStore(let errorDescription):
+            return NSLocalizedString("Something went wrong migrating local store: \(errorDescription)", comment: "")
+        case .couldNotDeleteStoreAfterMigration(let errorDescription):
+            return NSLocalizedString("Something went wrong deleting old store: \(errorDescription)", comment: "")
+        case .genericError(let customContent):
+            if customContent.isEmpty {
+                return NSLocalizedString("Something went wrong accessing device storage", comment: "")
+            } else {
+                return NSLocalizedString(customContent, comment: "")
+            }
+        }
+    }
+}
+
+// MARK: - Application Errors
+
+enum AppError: Error {
+    case couldNotGetLoggedInClient
+    case couldNotGetPostId
+    case genericError(String = "")
+}
+
+extension AppError: LocalizedError {
+    public var errorDescription: String? {
+        switch self {
+        case .couldNotGetLoggedInClient:
+            return NSLocalizedString("Something went wrong trying to access the WriteFreely client.", comment: "")
+        case .couldNotGetPostId:
+            return NSLocalizedString("Something went wrong trying to get the post's unique ID.", comment: "")
+        case .genericError(let customContent):
+            if customContent.isEmpty {
+                return NSLocalizedString("Something went wrong", comment: "")
+            } else {
+                return NSLocalizedString(customContent, comment: "")
+            }
+        }
+    }
+}
diff --git a/Shared/ErrorHandling/ErrorHandling.swift b/Shared/ErrorHandling/ErrorHandling.swift
new file mode 100644
index 0000000..8644b33
--- /dev/null
+++ b/Shared/ErrorHandling/ErrorHandling.swift
@@ -0,0 +1,42 @@
+// Based on https://www.ralfebert.com/swiftui/generic-error-handling/
+
+import SwiftUI
+
+struct ErrorAlert: Identifiable {
+    var id = UUID()
+    var message: String
+    var dismissAction: (() -> Void)?
+}
+
+class ErrorHandling: ObservableObject {
+    @Published var currentAlert: ErrorAlert?
+
+    func handle(error: Error) {
+        currentAlert = ErrorAlert(message: error.localizedDescription)
+    }
+}
+
+struct HandleErrorByShowingAlertViewModifier: ViewModifier {
+    @StateObject var errorHandling = ErrorHandling()
+
+    func body(content: Content) -> some View {
+        content
+            .environmentObject(errorHandling)
+            .background(
+                EmptyView()
+                    .alert(item: $errorHandling.currentAlert) { currentAlert in
+                        Alert(title: Text("Error"),
+                              message: Text(currentAlert.message),
+                              dismissButton: .default(Text("OK")) {
+                            currentAlert.dismissAction?()
+                        })
+                    }
+            )
+    }
+}
+
+extension View {
+    func withErrorHandling() -> some View {
+        modifier(HandleErrorByShowingAlertViewModifier())
+    }
+}
diff --git a/Shared/Extensions/UserDefaults+Extensions.swift b/Shared/Extensions/UserDefaults+Extensions.swift
index f40a824..dcf0267 100644
--- a/Shared/Extensions/UserDefaults+Extensions.swift
+++ b/Shared/Extensions/UserDefaults+Extensions.swift
@@ -1,68 +1,59 @@
 import Foundation
 
 enum WFDefaults {
     static let isLoggedIn = "isLoggedIn"
     static let showAllPostsFlag = "showAllPostsFlag"
     static let selectedCollectionURL = "selectedCollectionURL"
     static let lastDraftURL = "lastDraftURL"
     static let colorSchemeIntegerKey = "colorSchemeIntegerKey"
     static let defaultFontIntegerKey = "defaultFontIntegerKey"
     static let usernameStringKey = "usernameStringKey"
     static let serverStringKey = "serverStringKey"
     #if os(macOS)
     static let automaticallyChecksForUpdates = "automaticallyChecksForUpdates"
     static let subscribeToBetaUpdates = "subscribeToBetaUpdates"
     #endif
+    static let didHaveFatalError = "didHaveFatalError"
+    static let fatalErrorDescription = "fatalErrorDescription"
 }
 
 extension UserDefaults {
 
-    private enum DefaultsError: Error {
-        case couldNotMigrateStandardDefaults
-
-        var description: String {
-            switch self {
-            case .couldNotMigrateStandardDefaults:
-                return "Could not migrate user defaults to group container."
-            }
-        }
-    }
-
     private static let appGroupName: String = "group.com.abunchtell.writefreely"
     private static let didMigrateDefaultsToAppGroup: String = "didMigrateDefaultsToAppGroup"
     private static let didRemoveStandardDefaults: String = "didRemoveStandardDefaults"
 
     static var shared: UserDefaults {
         if let groupDefaults = UserDefaults(suiteName: UserDefaults.appGroupName),
            groupDefaults.bool(forKey: UserDefaults.didMigrateDefaultsToAppGroup) {
             return groupDefaults
         } else {
             do {
                 let groupDefaults = try UserDefaults.standard.migrateDefaultsToAppGroup()
                 return groupDefaults
             } catch {
                 return UserDefaults.standard
             }
         }
     }
 
     private func migrateDefaultsToAppGroup() throws -> UserDefaults {
         let userDefaults = UserDefaults.standard
         let groupDefaults = UserDefaults(suiteName: UserDefaults.appGroupName)
 
         if let groupDefaults = groupDefaults {
             if groupDefaults.bool(forKey: UserDefaults.didMigrateDefaultsToAppGroup) {
                 return groupDefaults
             }
 
             for (key, value) in userDefaults.dictionaryRepresentation() {
                 groupDefaults.set(value, forKey: key)
             }
             groupDefaults.set(true, forKey: UserDefaults.didMigrateDefaultsToAppGroup)
             return groupDefaults
         } else {
-            throw DefaultsError.couldNotMigrateStandardDefaults
+            throw UserDefaultsError.couldNotMigrateStandardDefaults
         }
     }
 
 }
diff --git a/Shared/Extensions/WriteFreelyModel+API.swift b/Shared/Extensions/WriteFreelyModel+API.swift
index 939cf76..36e657a 100644
--- a/Shared/Extensions/WriteFreelyModel+API.swift
+++ b/Shared/Extensions/WriteFreelyModel+API.swift
@@ -1,152 +1,173 @@
 import Foundation
 import WriteFreely
 
 extension WriteFreelyModel {
     func login(to server: URL, as username: String, password: String) {
         if !hasNetworkConnection {
-            isPresentingNetworkErrorAlert = true
+            self.currentError = NetworkError.noConnectionError
             return
         }
         let secureProtocolPrefix = "https://"
         let insecureProtocolPrefix = "http://"
         var serverString = server.absoluteString
         // If there's neither an http or https prefix, prepend "https://" to the server string.
         if !(serverString.hasPrefix(secureProtocolPrefix) || serverString.hasPrefix(insecureProtocolPrefix)) {
             serverString = secureProtocolPrefix + serverString
         }
         // If the server string is prefixed with http, upgrade to https before attempting to login.
         if serverString.hasPrefix(insecureProtocolPrefix) {
             serverString = serverString.replacingOccurrences(of: insecureProtocolPrefix, with: secureProtocolPrefix)
         }
         isLoggingIn = true
         var serverURL = URL(string: serverString)!
         if !serverURL.path.isEmpty {
             serverURL.deleteLastPathComponent()
         }
         account.server = serverURL.absoluteString
         client = WFClient(for: serverURL)
         client?.login(username: username, password: password, completion: loginHandler)
     }
 
     func logout() {
         if !hasNetworkConnection {
-            DispatchQueue.main.async { self.isPresentingNetworkErrorAlert = true }
+            self.currentError = NetworkError.noConnectionError
             return
         }
         guard let loggedInClient = client else {
             do {
                 try purgeTokenFromKeychain(username: account.username, server: account.server)
                 account.logout()
             } catch {
-                fatalError("Failed to log out persisted state")
+                self.currentError = KeychainError.couldNotPurgeAccessToken
             }
             return
         }
         loggedInClient.logout(completion: logoutHandler)
     }
 
     func fetchUserCollections() {
         if !hasNetworkConnection {
-            DispatchQueue.main.async { self.isPresentingNetworkErrorAlert = true }
+            self.currentError = NetworkError.noConnectionError
+            return
+        }
+        guard let loggedInClient = client else {
+            self.currentError = AppError.couldNotGetLoggedInClient
             return
         }
-        guard let loggedInClient = client else { return }
         // We're starting the network request.
         DispatchQueue.main.async {
             self.isProcessingRequest = true
         }
         loggedInClient.getUserCollections(completion: fetchUserCollectionsHandler)
     }
 
     func fetchUserPosts() {
         if !hasNetworkConnection {
-            DispatchQueue.main.async { self.isPresentingNetworkErrorAlert = true }
+            self.currentError = NetworkError.noConnectionError
+            return
+        }
+        guard let loggedInClient = client else {
+            self.currentError = AppError.couldNotGetLoggedInClient
             return
         }
-        guard let loggedInClient = client else { return }
         // We're starting the network request.
         DispatchQueue.main.async {
             self.isProcessingRequest = true
         }
         loggedInClient.getPosts(completion: fetchUserPostsHandler)
     }
 
     func publish(post: WFAPost) {
         postToUpdate = nil
 
         if !hasNetworkConnection {
-            DispatchQueue.main.async { self.isPresentingNetworkErrorAlert = true }
+            self.currentError = NetworkError.noConnectionError
+            return
+        }
+        guard let loggedInClient = client else {
+            self.currentError = AppError.couldNotGetLoggedInClient
             return
         }
-        guard let loggedInClient = client else { return }
         // We're starting the network request.
         DispatchQueue.main.async {
             self.isProcessingRequest = true
         }
 
         if post.language == nil {
             if let languageCode = Locale.current.languageCode {
                 post.language = languageCode
                 post.rtl = Locale.characterDirection(forLanguage: languageCode) == .rightToLeft
             }
         }
 
         var wfPost = WFPost(
             body: post.body,
             title: post.title.isEmpty ? "" : post.title,
             appearance: post.appearance,
             language: post.language,
             rtl: post.rtl,
             createdDate: post.status == PostStatus.local.rawValue ? Date() : post.createdDate
         )
 
         if let existingPostId = post.postId {
             // This is an existing post.
             postToUpdate = post
             wfPost.postId = post.postId
 
             loggedInClient.updatePost(
                 postId: existingPostId,
                 updatedPost: wfPost,
                 completion: publishHandler
             )
         } else {
             // This is a new local draft.
             loggedInClient.createPost(
                 post: wfPost, in: post.collectionAlias, completion: publishHandler
             )
         }
     }
 
     func updateFromServer(post: WFAPost) {
         if !hasNetworkConnection {
-            DispatchQueue.main.async { self.isPresentingNetworkErrorAlert = true }
+            self.currentError = NetworkError.noConnectionError
+            return
+        }
+        guard let loggedInClient = client else {
+            self.currentError = AppError.couldNotGetLoggedInClient
+            return
+        }
+        guard let postId = post.postId else {
+            self.currentError = AppError.couldNotGetPostId
             return
         }
-        guard let loggedInClient = client else { return }
-        guard let postId = post.postId else { return }
         // We're starting the network request.
         DispatchQueue.main.async {
             self.selectedPost = post
             self.isProcessingRequest = true
         }
         loggedInClient.getPost(byId: postId, completion: updateFromServerHandler)
     }
 
     func move(post: WFAPost, from oldCollection: WFACollection?, to newCollection: WFACollection?) {
         if !hasNetworkConnection {
-            DispatchQueue.main.async { self.isPresentingNetworkErrorAlert = true }
+            self.currentError = NetworkError.noConnectionError
+            return
+        }
+        guard let loggedInClient = client else {
+            self.currentError = AppError.couldNotGetLoggedInClient
+            return
+        }
+        guard let postId = post.postId else {
+            self.currentError = AppError.couldNotGetPostId
             return
         }
-        guard let loggedInClient = client,
-              let postId = post.postId else { return }
         // We're starting the network request.
         DispatchQueue.main.async {
             self.isProcessingRequest = true
         }
 
         selectedPost = post
         post.collectionAlias = newCollection?.alias
         loggedInClient.movePost(postId: postId, to: newCollection?.alias, completion: movePostHandler)
     }
 }
diff --git a/Shared/Extensions/WriteFreelyModel+APIHandlers.swift b/Shared/Extensions/WriteFreelyModel+APIHandlers.swift
index 804dd41..3163676 100644
--- a/Shared/Extensions/WriteFreelyModel+APIHandlers.swift
+++ b/Shared/Extensions/WriteFreelyModel+APIHandlers.swift
@@ -1,278 +1,269 @@
 import Foundation
 import WriteFreely
 
 extension WriteFreelyModel {
     func loginHandler(result: Result<WFUser, Error>) {
         DispatchQueue.main.async {
             self.isLoggingIn = false
         }
         do {
             let user = try result.get()
             fetchUserCollections()
             fetchUserPosts()
             do {
                 try saveTokenToKeychain(user.token, username: user.username, server: account.server)
                 DispatchQueue.main.async {
                     self.account.login(user)
                 }
             } catch {
-                DispatchQueue.main.async {
-                    self.loginErrorMessage = "There was a problem storing your access token to the Keychain."
-                    self.isPresentingLoginErrorAlert = true
-                }
+                self.currentError = KeychainError.couldNotStoreAccessToken
             }
         } catch WFError.notFound {
-            DispatchQueue.main.async {
-                self.loginErrorMessage = AccountError.usernameNotFound.localizedDescription
-                self.isPresentingLoginErrorAlert = true
-            }
+            self.currentError = AccountError.usernameNotFound
         } catch WFError.unauthorized {
-            DispatchQueue.main.async {
-                self.loginErrorMessage = AccountError.invalidPassword.localizedDescription
-                self.isPresentingLoginErrorAlert = true
-            }
+            self.currentError = AccountError.invalidPassword
         } catch {
             if (error as NSError).domain == NSURLErrorDomain,
                (error as NSError).code == -1003 {
-                DispatchQueue.main.async {
-                    self.loginErrorMessage = AccountError.serverNotFound.localizedDescription
-                    self.isPresentingLoginErrorAlert = true
-                }
+                self.currentError = AccountError.serverNotFound
             } else {
-                DispatchQueue.main.async {
-                    self.loginErrorMessage = error.localizedDescription
-                    self.isPresentingLoginErrorAlert = true
-                }
+                self.currentError = error
             }
         }
     }
 
     func logoutHandler(result: Result<Bool, Error>) {
         do {
             _ = try result.get()
             do {
                 try purgeTokenFromKeychain(username: account.user?.username, server: account.server)
                 client = nil
                 DispatchQueue.main.async {
                     self.account.logout()
-                    LocalStorageManager.standard.purgeUserCollections()
-                    self.posts.purgePublishedPosts()
+                    do {
+                        try LocalStorageManager.standard.purgeUserCollections()
+                        try self.posts.purgePublishedPosts()
+                    } catch {
+                        self.currentError = error
+                    }
                 }
             } catch {
-                print("Something went wrong purging the token from the Keychain.")
+                self.currentError = KeychainError.couldNotPurgeAccessToken
             }
         } catch WFError.notFound {
             // The user token is invalid or doesn't exist, so it's been invalidated by the server. Proceed with
             // purging the token from the Keychain, destroying the client object, and setting the AccountModel to its
             // logged-out state.
             do {
                 try purgeTokenFromKeychain(username: account.user?.username, server: account.server)
                 client = nil
                 DispatchQueue.main.async {
                     self.account.logout()
-                    LocalStorageManager.standard.purgeUserCollections()
-                    self.posts.purgePublishedPosts()
+                    do {
+                        try LocalStorageManager.standard.purgeUserCollections()
+                        try self.posts.purgePublishedPosts()
+                    } catch {
+                        self.currentError = error
+                    }
                 }
             } catch {
-                print("Something went wrong purging the token from the Keychain.")
+                self.currentError = KeychainError.couldNotPurgeAccessToken
             }
         } catch {
             // We get a 'cannot parse response' (similar to what we were seeing in the Swift package) NSURLError here,
             // so we're using a hacky workaround — if we get the NSURLError, but the AccountModel still thinks we're
             // logged in, try calling the logout function again and see what we get.
             // Conditional cast from 'Error' to 'NSError' always succeeds but is the only way to check error properties.
             if (error as NSError).domain == NSURLErrorDomain,
                (error as NSError).code == NSURLErrorCannotParseResponse {
                 if account.isLoggedIn {
                     self.logout()
                 }
             }
         }
     }
 
     func fetchUserCollectionsHandler(result: Result<[WFCollection], Error>) {
         // We're done with the network request.
         DispatchQueue.main.async {
             self.isProcessingRequest = false
         }
         do {
             let fetchedCollections = try result.get()
             for fetchedCollection in fetchedCollections {
                 DispatchQueue.main.async {
                     let localCollection = WFACollection(context: LocalStorageManager.standard.container.viewContext)
                     localCollection.alias = fetchedCollection.alias
                     localCollection.blogDescription = fetchedCollection.description
                     localCollection.email = fetchedCollection.email
                     localCollection.isPublic = fetchedCollection.isPublic ?? false
                     localCollection.styleSheet = fetchedCollection.styleSheet
                     localCollection.title = fetchedCollection.title
                     localCollection.url = fetchedCollection.url
                 }
             }
             DispatchQueue.main.async {
                 LocalStorageManager.standard.saveContext()
             }
         } catch WFError.unauthorized {
-            DispatchQueue.main.async {
-                self.loginErrorMessage = "Something went wrong, please try logging in again."
-                self.isPresentingLoginErrorAlert = true
-            }
+            self.currentError = AccountError.genericAuthError
             self.logout()
         } catch {
-            print(error)
+            self.currentError = AppError.genericError(error.localizedDescription)
         }
     }
 
     func fetchUserPostsHandler(result: Result<[WFPost], Error>) {
         // We're done with the network request.
         DispatchQueue.main.async {
             self.isProcessingRequest = false
         }
         let request = WFAPost.createFetchRequest()
         do {
             let locallyCachedPosts = try LocalStorageManager.standard.container.viewContext.fetch(request)
             do {
                 var postsToDelete = locallyCachedPosts.filter { $0.status != PostStatus.local.rawValue }
                 let fetchedPosts = try result.get()
                 for fetchedPost in fetchedPosts {
                     if let managedPost = locallyCachedPosts.first(where: { $0.postId == fetchedPost.postId }) {
                         DispatchQueue.main.async {
                             managedPost.wasDeletedFromServer = false
                             if let fetchedPostUpdatedDate = fetchedPost.updatedDate,
                                let localPostUpdatedDate = managedPost.updatedDate {
                                 managedPost.hasNewerRemoteCopy = fetchedPostUpdatedDate > localPostUpdatedDate
-                            } else { print("Error: could not determine which copy of post is newer") }
+                            } else {
+                                self.currentError = AppError.genericError(
+                                    "Error updating post: could not determine which copy of post is newer."
+                                )
+                            }
                             postsToDelete.removeAll(where: { $0.postId == fetchedPost.postId })
                         }
                     } else {
                         DispatchQueue.main.async {
                             let managedPost = WFAPost(context: LocalStorageManager.standard.container.viewContext)
                             self.importData(from: fetchedPost, into: managedPost)
                             managedPost.collectionAlias = fetchedPost.collectionAlias
                             managedPost.wasDeletedFromServer = false
                         }
                     }
                 }
                 DispatchQueue.main.async {
                     for post in postsToDelete { post.wasDeletedFromServer = true }
                     LocalStorageManager.standard.saveContext()
                 }
             } catch {
-                print(error)
+                self.currentError = AppError.genericError(error.localizedDescription)
             }
         } catch WFError.unauthorized {
-            DispatchQueue.main.async {
-                self.loginErrorMessage = "Something went wrong, please try logging in again."
-                self.isPresentingLoginErrorAlert = true
-            }
+            self.currentError = AccountError.genericAuthError
             self.logout()
         } catch {
-            print("Error: Failed to fetch cached posts")
+            self.currentError = LocalStoreError.couldNotFetchPosts("cached")
         }
     }
 
     func publishHandler(result: Result<WFPost, Error>) {
         // We're done with the network request.
         DispatchQueue.main.async {
             self.isProcessingRequest = false
         }
         // ⚠️ NOTE:
         // The API does not return a collection alias, so we take care not to overwrite the
         // cached post's collection alias with the 'nil' value from the fetched post.
         // See: https://github.com/writeas/writefreely-swift/issues/20
         do {
             let fetchedPost = try result.get()
             // If this is an updated post, check it against postToUpdate.
             if let updatingPost = self.postToUpdate {
                 importData(from: fetchedPost, into: updatingPost)
                 DispatchQueue.main.async {
                     LocalStorageManager.standard.saveContext()
                 }
             } else {
                 // Otherwise if it's a newly-published post, find it in the local store.
                 let request = WFAPost.createFetchRequest()
                 let matchBodyPredicate = NSPredicate(format: "body == %@", fetchedPost.body)
                 if let fetchedPostTitle = fetchedPost.title {
                     let matchTitlePredicate = NSPredicate(format: "title == %@", fetchedPostTitle)
                     request.predicate = NSCompoundPredicate(
                         andPredicateWithSubpredicates: [
                             matchTitlePredicate,
                             matchBodyPredicate
                         ]
                     )
                 } else {
                     request.predicate = matchBodyPredicate
                 }
                 do {
                     let cachedPostsResults = try LocalStorageManager.standard.container.viewContext.fetch(request)
                     guard let cachedPost = cachedPostsResults.first else { return }
                     importData(from: fetchedPost, into: cachedPost)
                     DispatchQueue.main.async {
                         LocalStorageManager.standard.saveContext()
                     }
                 } catch {
-                    print("Error: Failed to fetch cached posts")
+                    self.currentError = LocalStoreError.couldNotFetchPosts("cached")
                 }
             }
         } catch {
-            print(error)
+            self.currentError = AppError.genericError(error.localizedDescription)
         }
     }
 
     func updateFromServerHandler(result: Result<WFPost, Error>) {
         // We're done with the network request.
         DispatchQueue.main.async {
             self.isProcessingRequest = false
         }
         // ⚠️ NOTE:
         // The API does not return a collection alias, so we take care not to overwrite the
         // cached post's collection alias with the 'nil' value from the fetched post.
         // See: https://github.com/writeas/writefreely-swift/issues/20
         do {
             let fetchedPost = try result.get()
             guard let cachedPost = self.selectedPost else { return }
             importData(from: fetchedPost, into: cachedPost)
             cachedPost.hasNewerRemoteCopy = false
             DispatchQueue.main.async {
                 LocalStorageManager.standard.saveContext()
             }
         } catch {
-            print(error)
+            self.currentError = AppError.genericError(error.localizedDescription)
         }
     }
 
     func movePostHandler(result: Result<Bool, Error>) {
         // We're done with the network request.
         DispatchQueue.main.async {
             self.isProcessingRequest = false
         }
         do {
             let succeeded = try result.get()
             if succeeded {
                 if let post = selectedPost {
                     updateFromServer(post: post)
                 } else {
                     return
                 }
             }
         } catch {
             DispatchQueue.main.async {
                 LocalStorageManager.standard.container.viewContext.rollback()
             }
-            print(error)
+            self.currentError = AppError.genericError(error.localizedDescription)
         }
     }
 
     private func importData(from fetchedPost: WFPost, into cachedPost: WFAPost) {
         cachedPost.appearance = fetchedPost.appearance
         cachedPost.body = fetchedPost.body
         cachedPost.createdDate = fetchedPost.createdDate
         cachedPost.language = fetchedPost.language
         cachedPost.postId = fetchedPost.postId
         cachedPost.rtl = fetchedPost.rtl ?? false
         cachedPost.slug = fetchedPost.slug
         cachedPost.status = PostStatus.published.rawValue
         cachedPost.title = fetchedPost.title ?? ""
         cachedPost.updatedDate = fetchedPost.updatedDate
     }
 }
diff --git a/Shared/Extensions/WriteFreelyModel+Keychain.swift b/Shared/Extensions/WriteFreelyModel+Keychain.swift
index f039e31..f6555aa 100644
--- a/Shared/Extensions/WriteFreelyModel+Keychain.swift
+++ b/Shared/Extensions/WriteFreelyModel+Keychain.swift
@@ -1,61 +1,55 @@
 import Foundation
 
 extension WriteFreelyModel {
 
-    enum WFKeychainError: Error {
-        case saveToKeychainFailed
-        case purgeFromKeychainFailed
-        case fetchFromKeychainFailed
-    }
-
     func saveTokenToKeychain(_ token: String, username: String?, server: String) throws {
         let query: [String: Any] = [
             kSecClass as String: kSecClassGenericPassword,
             kSecValueData as String: token.data(using: .utf8)!,
             kSecAttrAccount as String: username ?? "anonymous",
             kSecAttrService as String: server
         ]
         let status = SecItemAdd(query as CFDictionary, nil)
         guard status == errSecDuplicateItem || status == errSecSuccess else {
-            throw WFKeychainError.saveToKeychainFailed
+            throw KeychainError.couldNotStoreAccessToken
         }
     }
 
     func purgeTokenFromKeychain(username: String?, server: String) throws {
         let query: [String: Any] = [
             kSecClass as String: kSecClassGenericPassword,
             kSecAttrAccount as String: username ?? "anonymous",
             kSecAttrService as String: server
         ]
         let status = SecItemDelete(query as CFDictionary)
         guard status == errSecSuccess || status == errSecItemNotFound else {
-            throw WFKeychainError.purgeFromKeychainFailed
+            throw KeychainError.couldNotPurgeAccessToken
         }
     }
 
     func fetchTokenFromKeychain(username: String?, server: String) throws -> String? {
         let query: [String: Any] = [
             kSecClass as String: kSecClassGenericPassword,
             kSecAttrAccount as String: username ?? "anonymous",
             kSecAttrService as String: server,
             kSecMatchLimit as String: kSecMatchLimitOne,
             kSecReturnAttributes as String: true,
             kSecReturnData as String: true
         ]
         var secItem: CFTypeRef?
         let status = SecItemCopyMatching(query as CFDictionary, &secItem)
         guard status != errSecItemNotFound else {
-            return nil
+            throw KeychainError.couldNotFetchAccessToken
         }
         guard status == errSecSuccess else {
-            throw WFKeychainError.fetchFromKeychainFailed
+            throw KeychainError.couldNotFetchAccessToken
         }
         guard let existingSecItem = secItem as? [String: Any],
               let tokenData = existingSecItem[kSecValueData as String] as? Data,
               let token = String(data: tokenData, encoding: .utf8) else {
-            return nil
+            throw KeychainError.couldNotFetchAccessToken
         }
         return token
     }
 
 }
diff --git a/Shared/LocalStorageManager.swift b/Shared/LocalStorageManager.swift
index b644faf..2cf57ca 100644
--- a/Shared/LocalStorageManager.swift
+++ b/Shared/LocalStorageManager.swift
@@ -1,123 +1,138 @@
 import CoreData
 
 #if os(iOS)
 import UIKit
 #elseif os(macOS)
 import AppKit
 #endif
 
 final class LocalStorageManager {
 
+    private let logger = Logging(for: String(describing: LocalStorageManager.self))
+
     public static var standard = LocalStorageManager()
     public let container: NSPersistentContainer
     private let containerName = "LocalStorageModel"
 
     private init() {
         container = NSPersistentContainer(name: containerName)
         setupStore(in: container)
         registerObservers()
     }
 
     func saveContext() {
         if container.viewContext.hasChanges {
             do {
+                logger.log("Saving context to local store started...")
                 try container.viewContext.save()
+                logger.log("Context saved to local store.")
             } catch {
-                print("Error saving context: \(error)")
+                logger.logCrashAndSetFlag(error: LocalStoreError.couldNotSaveContext)
             }
         }
     }
 
-    func purgeUserCollections() {
+    func purgeUserCollections() throws {
         let fetchRequest: NSFetchRequest<NSFetchRequestResult> = NSFetchRequest(entityName: "WFACollection")
         let deleteRequest = NSBatchDeleteRequest(fetchRequest: fetchRequest)
 
         do {
+            logger.log("Purging user collections from local store...")
             try container.viewContext.executeAndMergeChanges(using: deleteRequest)
+            logger.log("User collections purged from local store.")
         } catch {
-            print("Error: Failed to purge cached collections.")
+            logger.log("\(LocalStoreError.couldNotPurgeCollections.localizedDescription)", level: .error)
+            throw LocalStoreError.couldNotPurgeCollections
         }
     }
 
 }
 
 private extension LocalStorageManager {
 
     var oldStoreURL: URL {
         let appSupport = FileManager.default.urls(for: .applicationSupportDirectory, in: .userDomainMask).first!
         return appSupport.appendingPathComponent("LocalStorageModel.sqlite")
     }
 
     var sharedStoreURL: URL {
         let id = "group.com.abunchtell.writefreely"
         let groupContainer = FileManager.default.containerURL(forSecurityApplicationGroupIdentifier: id)!
         return groupContainer.appendingPathComponent("LocalStorageModel.sqlite")
     }
 
     func setupStore(in container: NSPersistentContainer) {
         if !FileManager.default.fileExists(atPath: oldStoreURL.path) {
             container.persistentStoreDescriptions.first!.url = sharedStoreURL
         }
 
         container.loadPersistentStores { _, error in
+            self.logger.log("Loading local store...")
             if let error = error {
-                fatalError("Core Data store failed to load with error: \(error)")
+                self.logger.logCrashAndSetFlag(error: LocalStoreError.couldNotLoadStore(error.localizedDescription))
             }
+            self.logger.log("Loaded local store.")
         }
         migrateStore(for: container)
         container.viewContext.automaticallyMergesChangesFromParent = true
         container.viewContext.mergePolicy = NSMergeByPropertyObjectTrumpMergePolicy
     }
 
     func migrateStore(for container: NSPersistentContainer) {
         // Check if the shared store exists before attempting a migration — for example, in case we've already attempted
         // and successfully completed a migration, but the deletion of the old store failed for some reason.
         guard !FileManager.default.fileExists(atPath: sharedStoreURL.path) else { return }
 
         let coordinator = container.persistentStoreCoordinator
 
         // Get a reference to the old store.
         guard let oldStore = coordinator.persistentStore(for: oldStoreURL) else {
             return
         }
 
         // Attempt to migrate the old store over to the shared store URL.
         do {
+            self.logger.log("Migrating local store to shared store...")
             try coordinator.migratePersistentStore(oldStore,
                                                    to: sharedStoreURL,
                                                    options: nil,
                                                    withType: NSSQLiteStoreType)
+            self.logger.log("Migrated local store to shared store.")
         } catch {
-            fatalError("Something went wrong migrating the store: \(error)")
+            logger.logCrashAndSetFlag(error: LocalStoreError.couldNotMigrateStore(error.localizedDescription))
         }
 
         // Attempt to delete the old store.
         do {
+            logger.log("Deleting migrated local store...")
             try FileManager.default.removeItem(at: oldStoreURL)
+            logger.log("Deleted migrated local store.")
         } catch {
-            fatalError("Something went wrong while deleting the old store: \(error)")
+            logger.logCrashAndSetFlag(
+                error: LocalStoreError.couldNotDeleteStoreAfterMigration(error.localizedDescription)
+            )
         }
     }
 
     func registerObservers() {
         let center = NotificationCenter.default
 
         #if os(iOS)
         let notification = UIApplication.willResignActiveNotification
         #elseif os(macOS)
         let notification = NSApplication.willResignActiveNotification
         #endif
 
         // We don't need to worry about removing this observer because we're targeting iOS 9+ / macOS 10.11+; the
         // system will clean this up the next time it would be posted to.
         // See: https://developer.apple.com/documentation/foundation/notificationcenter/1413994-removeobserver
         // And: https://developer.apple.com/documentation/foundation/notificationcenter/1407263-removeobserver
         // swiftlint:disable:next discarded_notification_center_observer
         center.addObserver(forName: notification, object: nil, queue: nil, using: self.saveContextOnResignActive)
     }
 
     func saveContextOnResignActive(_ notification: Notification) {
         saveContext()
     }
 
 }
diff --git a/Shared/Logging/Logging.swift b/Shared/Logging/Logging.swift
new file mode 100644
index 0000000..64d7f9c
--- /dev/null
+++ b/Shared/Logging/Logging.swift
@@ -0,0 +1,50 @@
+//
+//  Logging.swift
+//  WriteFreely-MultiPlatform
+//
+//  Created by Angelo Stavrow on 2022-06-25.
+//
+
+import Foundation
+import os
+import OSLog
+
+protocol LogWriter {
+    func log(_ message: String, withSensitiveInfo privateInfo: String?, level: OSLogType)
+    func logCrashAndSetFlag(error: Error)
+}
+
+final class Logging {
+
+    private let logger: Logger
+    private let subsystem = Bundle.main.bundleIdentifier!
+
+    init(for category: String = "") {
+        self.logger = Logger(subsystem: subsystem, category: category)
+    }
+
+}
+
+extension Logging: LogWriter {
+
+    func log(
+        _ message: String,
+        withSensitiveInfo privateInfo: String? = nil,
+        level: OSLogType = .default
+    ) {
+        if let privateInfo = privateInfo {
+            logger.log(level: level, "\(message): \(privateInfo, privacy: .sensitive)")
+        } else {
+            logger.log(level: level, "\(message)")
+        }
+    }
+
+    func logCrashAndSetFlag(error: Error) {
+        let errorDescription = error.localizedDescription
+        UserDefaults.shared.set(true, forKey: WFDefaults.didHaveFatalError)
+        UserDefaults.shared.set(errorDescription, forKey: WFDefaults.fatalErrorDescription)
+        logger.log(level: .error, "\(errorDescription)")
+        fatalError(errorDescription)
+    }
+
+}
diff --git a/Shared/Models/WriteFreelyModel.swift b/Shared/Models/WriteFreelyModel.swift
index ecb575f..ba778d0 100644
--- a/Shared/Models/WriteFreelyModel.swift
+++ b/Shared/Models/WriteFreelyModel.swift
@@ -1,83 +1,103 @@
 import Foundation
 import WriteFreely
 import Security
 import Network
 
 // MARK: - WriteFreelyModel
 
 final class WriteFreelyModel: ObservableObject {
+
+    // MARK: - Models
     @Published var account = AccountModel()
     @Published var preferences = PreferencesModel()
     @Published var posts = PostListModel()
     @Published var editor = PostEditorModel()
+
+    // MARK: - Error handling
+    @Published var hasError: Bool = false
+    var currentError: Error? {
+        didSet {
+            // TODO: Remove print statements for debugging before closing #204.
+            #if DEBUG
+            print("⚠️ currentError -> didSet \(currentError?.localizedDescription ?? "nil")")
+            print("  > hasError was: \(self.hasError)")
+            #endif
+            DispatchQueue.main.async {
+                #if DEBUG
+                print("  > self.currentError != nil: \(self.currentError != nil)")
+                #endif
+                self.hasError = self.currentError != nil
+                #if DEBUG
+                print("  > hasError is now: \(self.hasError)")
+                #endif
+            }
+        }
+    }
+
+    // MARK: - State
     @Published var isLoggingIn: Bool = false
     @Published var isProcessingRequest: Bool = false
     @Published var hasNetworkConnection: Bool = true
     @Published var selectedPost: WFAPost?
     @Published var selectedCollection: WFACollection?
     @Published var showAllPosts: Bool = true
     @Published var isPresentingDeleteAlert: Bool = false
-    @Published var isPresentingLoginErrorAlert: Bool = false
-    @Published var isPresentingNetworkErrorAlert: Bool = false
     @Published var postToDelete: WFAPost?
-    #if os(iOS)
+#if os(iOS)
     @Published var isPresentingSettingsView: Bool = false
-    #endif
+#endif
 
     static var shared = WriteFreelyModel()
 
-    var loginErrorMessage: String?
-
     // swiftlint:disable line_length
     let helpURL = URL(string: "https://discuss.write.as/c/help/5")!
     let howToURL = URL(string: "https://discuss.write.as/t/using-the-writefreely-ios-app/1946")!
     let reviewURL = URL(string: "https://apps.apple.com/app/id1531530896?action=write-review")!
     let licensesURL = URL(string: "https://github.com/writeas/writefreely-swiftui-multiplatform/tree/main/Shared/Resources/Licenses")!
     // swiftlint:enable line_length
 
     internal var client: WFClient?
     private let defaults = UserDefaults.shared
     private let monitor = NWPathMonitor()
     private let queue = DispatchQueue(label: "NetworkMonitor")
     internal var postToUpdate: WFAPost?
 
     init() {
         DispatchQueue.main.async {
             self.preferences.appearance = self.defaults.integer(forKey: WFDefaults.colorSchemeIntegerKey)
             self.preferences.font = self.defaults.integer(forKey: WFDefaults.defaultFontIntegerKey)
             self.account.restoreState()
             if self.account.isLoggedIn {
                 guard let serverURL = URL(string: self.account.server) else {
-                    print("Server URL not found")
+                    self.currentError = AccountError.invalidServerURL
                     return
                 }
                 do {
                     guard let token = try self.fetchTokenFromKeychain(
                             username: self.account.username,
                             server: self.account.server
                     ) else {
-                        self.loginErrorMessage = AccountError.couldNotFetchTokenFromKeychain.localizedDescription
-                        self.isPresentingLoginErrorAlert = true
+                        self.currentError = KeychainError.couldNotFetchAccessToken
                         return
                     }
 
                     self.account.login(WFUser(token: token, username: self.account.username))
                     self.client = WFClient(for: serverURL)
                     self.client?.user = self.account.user
                     self.fetchUserCollections()
                     self.fetchUserPosts()
                 } catch {
-                    self.loginErrorMessage = AccountError.couldNotFetchTokenFromKeychain.localizedDescription
-                    self.isPresentingLoginErrorAlert = true
+                    self.currentError = KeychainError.couldNotFetchAccessToken
+                    return
                 }
             }
         }
 
         monitor.pathUpdateHandler = { path in
             DispatchQueue.main.async {
                 self.hasNetworkConnection = path.status == .satisfied
             }
         }
         monitor.start(queue: queue)
     }
 }
diff --git a/Shared/Navigation/ContentView.swift b/Shared/Navigation/ContentView.swift
index 4001266..f57a541 100644
--- a/Shared/Navigation/ContentView.swift
+++ b/Shared/Navigation/ContentView.swift
@@ -1,71 +1,86 @@
 import SwiftUI
 
 struct ContentView: View {
     @EnvironmentObject var model: WriteFreelyModel
+    @EnvironmentObject var errorHandling: ErrorHandling
 
     var body: some View {
         NavigationView {
             #if os(macOS)
             CollectionListView()
+                .withErrorHandling()
                 .toolbar {
                     Button(
                         action: {
                             NSApp.keyWindow?.contentViewController?.tryToPerform(
                                 #selector(NSSplitViewController.toggleSidebar(_:)), with: nil
                             )
                         },
                         label: { Image(systemName: "sidebar.left") }
                     )
                     .help("Toggle the sidebar's visibility.")
                     Spacer()
                     Button(action: {
                         withAnimation {
                             // Un-set the currently selected post
                             self.model.selectedPost = nil
                         }
                         // Create the new-post managed object
                         let managedPost = model.editor.generateNewLocalPost(withFont: model.preferences.font)
                         withAnimation {
                             DispatchQueue.main.asyncAfter(deadline: .now()) {
                                 // Load the new post in the editor
                                 self.model.selectedPost = managedPost
                             }
                         }
                     }, label: { Image(systemName: "square.and.pencil") })
                     .help("Create a new local draft.")
                 }
             #else
             CollectionListView()
+                .withErrorHandling()
             #endif
 
             #if os(macOS)
             ZStack {
                 PostListView(selectedCollection: model.selectedCollection, showAllPosts: model.showAllPosts)
+                    .withErrorHandling()
                 if model.isProcessingRequest {
                     ZStack {
                         Color(NSColor.controlBackgroundColor).opacity(0.75)
                         ProgressView()
                     }
                 }
             }
             #else
             PostListView(selectedCollection: model.selectedCollection, showAllPosts: model.showAllPosts)
+                .withErrorHandling()
             #endif
 
             Text("Select a post, or create a new local draft.")
                 .foregroundColor(.secondary)
         }
         .environmentObject(model)
+        .onChange(of: model.hasError) { value in
+            if value {
+                if let error = model.currentError {
+                    self.errorHandling.handle(error: error)
+                } else {
+                    self.errorHandling.handle(error: AppError.genericError())
+                }
+                model.hasError = false
+            }
+        }
     }
 }
 
 struct ContentView_Previews: PreviewProvider {
     static var previews: some View {
         let context = LocalStorageManager.standard.container.viewContext
         let model = WriteFreelyModel()
 
         return ContentView()
             .environment(\.managedObjectContext, context)
             .environmentObject(model)
     }
 }
diff --git a/Shared/PostCollection/CollectionListModel.swift b/Shared/PostCollection/CollectionListModel.swift
deleted file mode 100644
index 5e107bb..0000000
--- a/Shared/PostCollection/CollectionListModel.swift
+++ /dev/null
@@ -1,40 +0,0 @@
-import SwiftUI
-import CoreData
-
-class CollectionListModel: NSObject, ObservableObject {
-    @Published var list: [WFACollection] = []
-    private let collectionsController: NSFetchedResultsController<WFACollection>
-
-    init(managedObjectContext: NSManagedObjectContext) {
-        collectionsController = NSFetchedResultsController(fetchRequest: WFACollection.collectionsFetchRequest,
-                                                           managedObjectContext: managedObjectContext,
-                                                           sectionNameKeyPath: nil,
-                                                           cacheName: nil)
-
-        super.init()
-
-        collectionsController.delegate = self
-
-        do {
-            try collectionsController.performFetch()
-            list = collectionsController.fetchedObjects ?? []
-        } catch {
-            print("Failed to fetch collections!")
-        }
-    }
-}
-
-extension CollectionListModel: NSFetchedResultsControllerDelegate {
-    func controllerDidChangeContent(_ controller: NSFetchedResultsController<NSFetchRequestResult>) {
-        guard let collections = controller.fetchedObjects as? [WFACollection] else { return }
-        self.list = collections
-    }
-}
-
-extension WFACollection {
-    static var collectionsFetchRequest: NSFetchRequest<WFACollection> {
-        let request: NSFetchRequest<WFACollection> = WFACollection.createFetchRequest()
-        request.sortDescriptors = [NSSortDescriptor(keyPath: \WFACollection.title, ascending: true)]
-        return request
-    }
-}
diff --git a/Shared/PostCollection/CollectionListView.swift b/Shared/PostCollection/CollectionListView.swift
index 29e84b1..589903b 100644
--- a/Shared/PostCollection/CollectionListView.swift
+++ b/Shared/PostCollection/CollectionListView.swift
@@ -1,55 +1,64 @@
 import SwiftUI
 
 struct CollectionListView: View {
     @EnvironmentObject var model: WriteFreelyModel
-    @ObservedObject var collections = CollectionListModel(
-        managedObjectContext: LocalStorageManager.standard.container.viewContext
-    )
+    @EnvironmentObject var errorHandling: ErrorHandling
+    @FetchRequest(sortDescriptors: []) var collections: FetchedResults<WFACollection>
     @State var selectedCollection: WFACollection?
 
     var body: some View {
         List(selection: $selectedCollection) {
             if model.account.isLoggedIn {
                 NavigationLink("All Posts", destination: PostListView(selectedCollection: nil, showAllPosts: true))
                 NavigationLink("Drafts", destination: PostListView(selectedCollection: nil, showAllPosts: false))
                 Section(header: Text("Your Blogs")) {
-                    ForEach(collections.list, id: \.self) { collection in
+                    ForEach(collections, id: \.self) { collection in
                         NavigationLink(destination: PostListView(selectedCollection: collection, showAllPosts: false),
                                        tag: collection,
                                        selection: $selectedCollection,
                                        label: { Text("\(collection.title)") })
                     }
                 }
             } else {
                 NavigationLink(destination: PostListView(selectedCollection: nil, showAllPosts: false)) {
                     Text("Drafts")
                 }
             }
         }
         .navigationTitle(
             model.account.isLoggedIn ? "\(URL(string: model.account.server)?.host ?? "WriteFreely")" : "WriteFreely"
         )
         .listStyle(SidebarListStyle())
         .onChange(of: model.selectedCollection) { collection in
             if collection != model.editor.fetchSelectedCollectionFromAppStorage() {
                 self.model.editor.selectedCollectionURL = collection?.objectID.uriRepresentation()
             }
         }
         .onChange(of: model.showAllPosts) { value in
             if value != model.editor.showAllPostsFlag {
                 self.model.editor.showAllPostsFlag = model.showAllPosts
             }
         }
+        .onChange(of: model.hasError) { value in
+            if value {
+                if let error = model.currentError {
+                    self.errorHandling.handle(error: error)
+                } else {
+                    self.errorHandling.handle(error: AppError.genericError())
+                }
+                model.hasError = false
+            }
+        }
     }
 }
 
 struct CollectionListView_LoggedOutPreviews: PreviewProvider {
     static var previews: some View {
         let context = LocalStorageManager.standard.container.viewContext
         let model = WriteFreelyModel()
 
         return CollectionListView()
             .environment(\.managedObjectContext, context)
             .environmentObject(model)
     }
 }
diff --git a/Shared/PostList/PostListModel.swift b/Shared/PostList/PostListModel.swift
index db0ff4a..edd545c 100644
--- a/Shared/PostList/PostListModel.swift
+++ b/Shared/PostList/PostListModel.swift
@@ -1,126 +1,126 @@
 import SwiftUI
 import CoreData
 
 class PostListModel: ObservableObject {
     func remove(_ post: WFAPost) {
         withAnimation {
             LocalStorageManager.standard.container.viewContext.delete(post)
             LocalStorageManager.standard.saveContext()
         }
     }
 
-    func purgePublishedPosts() {
+    func purgePublishedPosts() throws {
         let fetchRequest: NSFetchRequest<NSFetchRequestResult> = NSFetchRequest(entityName: "WFAPost")
         fetchRequest.predicate = NSPredicate(format: "status != %i", 0)
         let deleteRequest = NSBatchDeleteRequest(fetchRequest: fetchRequest)
 
         do {
             try LocalStorageManager.standard.container.viewContext.executeAndMergeChanges(using: deleteRequest)
         } catch {
-            print("Error: Failed to purge cached posts.")
+            throw LocalStoreError.couldNotPurgePosts("cached")
         }
     }
 
     func getBodyPreview(of post: WFAPost) -> String {
         var elidedPostBody: String = ""
 
         // Strip any markdown from the post body.
         let strippedPostBody = stripMarkdown(from: post.body)
 
         // Extract lede from post.
          elidedPostBody = extractLede(from: strippedPostBody)
 
         return elidedPostBody
     }
 }
 
 private extension PostListModel {
 
     func stripMarkdown(from string: String) -> String {
         var strippedString = string
         strippedString = stripHeadingOctothorpes(from: strippedString)
         strippedString = stripImages(from: strippedString, keepAltText: true)
         return strippedString
     }
 
     func stripHeadingOctothorpes(from string: String) -> String {
         let newLines = CharacterSet.newlines
         var processedComponents: [String] = []
         let components = string.components(separatedBy: newLines)
         for component in components {
             if component.isEmpty {
                 continue
             }
             var newString = component
             while newString.first == "#" {
                 newString.removeFirst()
             }
             if newString.hasPrefix(" ") {
                 newString.removeFirst()
             }
             processedComponents.append(newString)
         }
         let headinglessString = processedComponents.joined(separator: "\n\n")
         return headinglessString
     }
 
     func stripImages(from string: String, keepAltText: Bool = false) -> String {
         let pattern = #"!\[[\"]?(.*?)[\"|]?\]\(.*?\)"#
         var processedComponents: [String] = []
         let components = string.components(separatedBy: .newlines)
         for component in components {
             if component.isEmpty { continue }
             var processedString: String = component
             if keepAltText {
                 let regex = try? NSRegularExpression(pattern: pattern, options: [])
                 if let matches = regex?.matches(
                     in: component, options: [], range: NSRange(location: 0, length: component.utf16.count)
                 ) {
                     for match in matches {
                         if let range = Range(match.range(at: 1), in: component) {
                             processedString = "\(component[range])"
                         }
                     }
                 }
             } else {
                 let range = component.startIndex..<component.endIndex
                 processedString = component.replacingOccurrences(
                     of: pattern,
                     with: "",
                     options: .regularExpression,
                     range: range
                 )
             }
             if processedString.isEmpty { continue }
             processedComponents.append(processedString)
         }
         return processedComponents.joined(separator: "\n\n")
     }
 
     func extractLede(from string: String) -> String {
         let truncatedString = string.prefix(80)
         let terminatingPunctuation = ".。?"
         let terminatingCharacters = CharacterSet(charactersIn: terminatingPunctuation).union(.newlines)
 
         var lede: String = ""
         let sentences = truncatedString.components(separatedBy: terminatingCharacters)
         if let firstSentence = (sentences.filter { !$0.isEmpty }).first {
             if truncatedString.count > firstSentence.count {
                 if terminatingPunctuation.contains(truncatedString[firstSentence.endIndex]) {
                     lede = String(truncatedString[...firstSentence.endIndex])
                 } else {
                     lede = firstSentence
                 }
             } else if truncatedString.count == firstSentence.count {
                 if string.count > 80 {
                     if let endOfStringIndex = truncatedString.lastIndex(of: " ") {
                         lede = truncatedString[..<endOfStringIndex] + "…"
                     }
                 } else {
                     lede = firstSentence
                 }
             }
         }
         return lede
     }
 }
diff --git a/Shared/PostList/PostListView.swift b/Shared/PostList/PostListView.swift
index d59a706..c1bb662 100644
--- a/Shared/PostList/PostListView.swift
+++ b/Shared/PostList/PostListView.swift
@@ -1,188 +1,186 @@
 import SwiftUI
 import Combine
 
 struct PostListView: View {
     @EnvironmentObject var model: WriteFreelyModel
+    @EnvironmentObject var errorHandling: ErrorHandling
     @Environment(\.managedObjectContext) var managedObjectContext
 
     @State private var postCount: Int = 0
     @State private var filteredListViewId: Int = 0
 
     var selectedCollection: WFACollection?
     var showAllPosts: Bool
 
     #if os(iOS)
     private var frameHeight: CGFloat {
         var height: CGFloat = 50
         let bottom = UIApplication.shared.windows.first?.safeAreaInsets.bottom ?? 0
         height += bottom
         return height
     }
     #endif
 
     var body: some View {
         #if os(iOS)
         ZStack(alignment: .bottom) {
             PostListFilteredView(
                 collection: selectedCollection,
                 showAllPosts: showAllPosts,
                 postCount: $postCount
             )
                 .id(self.filteredListViewId)
                 .navigationTitle(
                     showAllPosts ? "All Posts" : selectedCollection?.title ?? (
                         model.account.server == "https://write.as" ? "Anonymous" : "Drafts"
                     )
                 )
                 .toolbar {
                     ToolbarItem(placement: .primaryAction) {
                         // We have to add a Spacer as a sibling view to the Button in some kind of Stack, so that any
                         // a11y modifiers are applied as expected: bug report filed as FB8956392.
                         ZStack {
                             Spacer()
                             Button(action: {
                                 let managedPost = model.editor.generateNewLocalPost(withFont: model.preferences.font)
                                 withAnimation {
                                     self.model.showAllPosts = false
                                     self.model.selectedPost = managedPost
                                 }
                             }, label: {
                                 ZStack {
                                     Image("does.not.exist")
                                         .accessibilityHidden(true)
                                     Image(systemName: "square.and.pencil")
                                         .accessibilityHidden(true)
                                         .imageScale(.large)         // These modifiers compensate for the resizing
                                         .padding(.vertical, 12)     // done to the Image (and the button tap target)
                                         .padding(.leading, 12)      // by the SwiftUI layout system from adding a
                                         .padding(.trailing, 8)      // Spacer in this ZStack (FB8956392).
                                 }
                                 .frame(maxWidth: .infinity, maxHeight: .infinity)
                             })
                             .accessibilityLabel(Text("Compose"))
                             .accessibilityHint(Text("Compose a new local draft"))
                         }
                     }
                 }
             VStack {
                 HStack(spacing: 0) {
                     Button(action: {
                         model.isPresentingSettingsView = true
                     }, label: {
                         Image(systemName: "gear")
                             .padding(.vertical, 4)
                             .padding(.horizontal, 8)
                     })
                     .accessibilityLabel(Text("Settings"))
                     .accessibilityHint(Text("Open the Settings sheet"))
                     .sheet(
                         isPresented: $model.isPresentingSettingsView,
                         onDismiss: { model.isPresentingSettingsView = false },
                         content: {
                             SettingsView()
                                 .environmentObject(model)
                         }
                     )
                     Spacer()
                     Text(postCount == 1 ? "\(postCount) post" : "\(postCount) posts")
                         .foregroundColor(.secondary)
-                        .alert(isPresented: $model.isPresentingNetworkErrorAlert, content: {
-                            Alert(
-                                title: Text("Connection Error"),
-                                message: Text("""
-                                There is no internet connection at the moment. Please reconnect or try again later.
-                                """),
-                                dismissButton: .default(Text("OK"), action: {
-                                    model.isPresentingNetworkErrorAlert = false
-                                })
-                            )
-                        })
                     Spacer()
                     if model.isProcessingRequest {
                         ProgressView()
                             .padding(.vertical, 4)
                             .padding(.horizontal, 8)
                     } else {
                         Button(action: {
                             DispatchQueue.main.async {
                                 model.fetchUserCollections()
                                 model.fetchUserPosts()
                             }
                         }, label: {
                             Image(systemName: "arrow.clockwise")
                                 .padding(.vertical, 4)
                                 .padding(.horizontal, 8)
                         })
                         .accessibilityLabel(Text("Refresh Posts"))
                         .accessibilityHint(Text("Fetch changes from the server"))
                         .disabled(!model.account.isLoggedIn)
                     }
                 }
                 .padding(.top, 8)
                 .padding(.horizontal, 8)
                 Spacer()
             }
             .frame(height: frameHeight)
             .background(Color(UIColor.systemGray5))
             .overlay(Divider(), alignment: .top)
             .onReceive(NotificationCenter.default.publisher(for: UIApplication.didBecomeActiveNotification)) { _ in
                 // We use this to invalidate and refresh the view, so that new posts created outside of the app (e.g.,
                 // in the action extension) show up.
                 withAnimation {
                     self.filteredListViewId += 1
                 }
             }
         }
         .ignoresSafeArea(.all, edges: .bottom)
         .onAppear {
             model.selectedCollection = selectedCollection
             model.showAllPosts = showAllPosts
         }
+        .onChange(of: model.hasError) { value in
+            if value {
+                if let error = model.currentError {
+                    self.errorHandling.handle(error: error)
+                } else {
+                    self.errorHandling.handle(error: AppError.genericError())
+                }
+                model.hasError = false
+            }
+        }
         #else
         PostListFilteredView(
             collection: selectedCollection,
             showAllPosts: showAllPosts,
             postCount: $postCount
         )
         .toolbar {
             ToolbarItemGroup(placement: .primaryAction) {
                 if model.selectedPost != nil {
                     ActivePostToolbarView(activePost: model.selectedPost!)
-                        .alert(isPresented: $model.isPresentingNetworkErrorAlert, content: {
-                            Alert(
-                                title: Text("Connection Error"),
-                                message: Text("""
-                                    There is no internet connection at the moment. \
-                                    Please reconnect or try again later.
-                                    """),
-                                dismissButton: .default(Text("OK"), action: {
-                                    model.isPresentingNetworkErrorAlert = false
-                                })
-                            )
-                        })
                 }
             }
         }
         .navigationTitle(
             showAllPosts ? "All Posts" : selectedCollection?.title ?? (
                 model.account.server == "https://write.as" ? "Anonymous" : "Drafts"
             )
         )
         .onAppear {
             model.selectedCollection = selectedCollection
             model.showAllPosts = showAllPosts
         }
+        .onChange(of: model.hasError) { value in
+            if value {
+                if let error = model.currentError {
+                    self.errorHandling.handle(error: error)
+                } else {
+                    self.errorHandling.handle(error: AppError.genericError())
+                }
+                model.hasError = false
+            }
+        }
         #endif
     }
 }
 
 struct PostListView_Previews: PreviewProvider {
     static var previews: some View {
         let context = LocalStorageManager.standard.container.viewContext
         let model = WriteFreelyModel()
 
         return PostListView(showAllPosts: true)
             .environment(\.managedObjectContext, context)
             .environmentObject(model)
     }
 }
diff --git a/Shared/WriteFreely_MultiPlatformApp.swift b/Shared/WriteFreely_MultiPlatformApp.swift
index 4378ada..51e261a 100644
--- a/Shared/WriteFreely_MultiPlatformApp.swift
+++ b/Shared/WriteFreely_MultiPlatformApp.swift
@@ -1,146 +1,183 @@
 import SwiftUI
 
 #if os(macOS)
 import Sparkle
 #endif
 
 @main
 struct CheckForDebugModifier {
     static func main() {
         #if os(macOS)
             if NSEvent.modifierFlags.contains(.shift) {
                 // Clear the launch-to-last-draft values to load a new draft.
                 UserDefaults.shared.setValue(false, forKey: WFDefaults.showAllPostsFlag)
                 UserDefaults.shared.setValue(nil, forKey: WFDefaults.selectedCollectionURL)
                 UserDefaults.shared.setValue(nil, forKey: WFDefaults.lastDraftURL)
             } else {
                 // No-op
             }
         #endif
         WriteFreely_MultiPlatformApp.main()
     }
 }
 
 struct WriteFreely_MultiPlatformApp: App {
     @StateObject private var model = WriteFreelyModel.shared
 
     #if os(macOS)
     @NSApplicationDelegateAdaptor(AppDelegate.self) var appDelegate
     @StateObject var updaterViewModel = MacUpdatesViewModel()
     @State private var selectedTab = 0
     #endif
 
+    @State private var didCrash = UserDefaults.shared.bool(forKey: WFDefaults.didHaveFatalError)
+
     var body: some Scene {
         WindowGroup {
             ContentView()
                 .onAppear(perform: {
                     if model.editor.showAllPostsFlag {
                         DispatchQueue.main.async {
                             self.model.selectedCollection = nil
                             self.model.showAllPosts = true
                             showLastDraftOrCreateNewLocalPost()
                         }
                     } else {
                         DispatchQueue.main.async {
                             self.model.selectedCollection = model.editor.fetchSelectedCollectionFromAppStorage()
                             self.model.showAllPosts = false
                             showLastDraftOrCreateNewLocalPost()
                         }
                     }
                 })
+                .alert(isPresented: $didCrash) {
+                    var helpMsg = "Alert the humans by sharing what happened on the help forum."
+                    if let errorMsg = UserDefaults.shared.object(forKey: WFDefaults.fatalErrorDescription) as? String {
+                        helpMsg.append("\n\n\(errorMsg)")
+                    }
+
+                    return Alert(
+                        title: Text("Crash Detected"),
+                        message: Text(helpMsg),
+                        primaryButton: .default(
+                            Text("Let us know"), action: didPressCrashAlertButton
+                        ),
+                        secondaryButton: .cancel(
+                            Text("Dismiss"),
+                            action: resetCrashFlags
+                        )
+                    )
+                }
+                .withErrorHandling()
                 .environmentObject(model)
                 .environment(\.managedObjectContext, LocalStorageManager.standard.container.viewContext)
 //                .preferredColorScheme(preferences.selectedColorScheme)    // See PreferencesModel for info.
         }
         .commands {
             #if os(macOS)
             CommandGroup(after: .appInfo) {
                 CheckForUpdatesView(updaterViewModel: updaterViewModel)
             }
             #endif
             CommandGroup(replacing: .newItem, addition: {
                 Button("New Post") {
                     createNewLocalPost()
                 }
                 .keyboardShortcut("n", modifiers: [.command])
             })
             CommandGroup(after: .newItem) {
                 Button("Refresh Posts") {
                     DispatchQueue.main.async {
                         model.fetchUserCollections()
                         model.fetchUserPosts()
                     }
                 }
                 .disabled(!model.account.isLoggedIn)
                 .keyboardShortcut("r", modifiers: [.command])
             }
             SidebarCommands()
             #if os(macOS)
             PostCommands(model: model)
             #endif
             CommandGroup(after: .help) {
                 Button("Visit Support Forum") {
                     #if os(macOS)
                     NSWorkspace().open(model.helpURL)
                     #else
                     UIApplication.shared.open(model.helpURL)
                     #endif
                 }
             }
             ToolbarCommands()
             TextEditingCommands()
         }
 
         #if os(macOS)
         Settings {
             TabView(selection: $selectedTab) {
                 MacAccountView()
                     .environmentObject(model)
                     .tabItem {
                         Image(systemName: "person.crop.circle")
                         Text("Account")
                     }
                     .tag(0)
                 MacPreferencesView(preferences: model.preferences)
                     .tabItem {
                         Image(systemName: "gear")
                         Text("Preferences")
                     }
                     .tag(1)
                 MacUpdatesView(updaterViewModel: updaterViewModel)
                     .tabItem {
                         Image(systemName: "arrow.down.circle")
                         Text("Updates")
                     }
                     .tag(2)
             }
+            .withErrorHandling()
             .frame(minWidth: 500, maxWidth: 500, minHeight: 200)
             .padding()
 //            .preferredColorScheme(preferences.selectedColorScheme)    // See PreferencesModel for info.
         }
         #endif
     }
 
     private func showLastDraftOrCreateNewLocalPost() {
         if model.editor.lastDraftURL != nil {
             self.model.selectedPost = model.editor.fetchLastDraftFromAppStorage()
         } else {
             createNewLocalPost()
         }
     }
 
     private func createNewLocalPost() {
         withAnimation {
             // Un-set the currently selected post
             self.model.selectedPost = nil
         }
         // Create the new-post managed object
         let managedPost = model.editor.generateNewLocalPost(withFont: model.preferences.font)
         withAnimation {
             // Set it as the selectedPost
             DispatchQueue.main.asyncAfter(deadline: .now()) {
                 self.model.selectedPost = managedPost
             }
         }
     }
+
+    private func resetCrashFlags() {
+        UserDefaults.shared.set(false, forKey: WFDefaults.didHaveFatalError)
+        UserDefaults.shared.removeObject(forKey: WFDefaults.fatalErrorDescription)
+    }
+
+    private func didPressCrashAlertButton() {
+        resetCrashFlags()
+        #if os(macOS)
+        NSWorkspace().open(model.helpURL)
+        #else
+        UIApplication.shared.open(model.helpURL)
+        #endif
+    }
+
 }
diff --git a/WriteFreely-MultiPlatform.xcodeproj/project.pbxproj b/WriteFreely-MultiPlatform.xcodeproj/project.pbxproj
index 742d691..3213599 100644
--- a/WriteFreely-MultiPlatform.xcodeproj/project.pbxproj
+++ b/WriteFreely-MultiPlatform.xcodeproj/project.pbxproj
@@ -1,1498 +1,1532 @@
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 				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
 				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
 				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
 				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
 				CLANG_WARN_QUOTED_INCLUDE_IN_FRAMEWORK_HEADER = YES;
 				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
 				CLANG_WARN_STRICT_PROTOTYPES = YES;
 				CLANG_WARN_SUSPICIOUS_MOVE = YES;
 				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
 				CLANG_WARN_UNREACHABLE_CODE = YES;
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
 				COPY_PHASE_STRIP = NO;
 				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
 				ENABLE_NS_ASSERTIONS = NO;
 				ENABLE_STRICT_OBJC_MSGSEND = YES;
 				GCC_C_LANGUAGE_STANDARD = gnu11;
 				GCC_NO_COMMON_BLOCKS = YES;
 				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
 				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
 				GCC_WARN_UNDECLARED_SELECTOR = YES;
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				MTL_FAST_MATH = YES;
 				SWIFT_COMPILATION_MODE = wholemodule;
 				SWIFT_OPTIMIZATION_LEVEL = "-O";
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 			name = Release;
 		};
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 		};
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 			name = Release;
 		};
 /* End XCBuildConfiguration section */
 
 /* Begin XCConfigurationList section */
 		172E10112735B83E00061372 /* Build configuration list for PBXNativeTarget "ActionExtension-iOS" */ = {
 			isa = XCConfigurationList;
 			buildConfigurations = (
 				172E100F2735B83E00061372 /* Debug */,
 				172E10102735B83E00061372 /* Release */,
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 			defaultConfigurationIsVisible = 0;
 			defaultConfigurationName = Release;
 		};
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 			defaultConfigurationIsVisible = 0;
 			defaultConfigurationName = Release;
 		};
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 			defaultConfigurationName = Release;
 		};
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 			defaultConfigurationName = Release;
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 			buildConfigurations = (
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 			defaultConfigurationIsVisible = 0;
 			defaultConfigurationName = Release;
 		};
 /* End XCConfigurationList section */
 
 /* Begin XCRemoteSwiftPackageReference section */
 		1784D2EB27946D880033E72E /* XCRemoteSwiftPackageReference "writefreely-swift" */ = {
 			isa = XCRemoteSwiftPackageReference;
 			repositoryURL = "https://github.com/writefreely/writefreely-swift";
 			requirement = {
 				kind = upToNextMajorVersion;
 				minimumVersion = 0.3.4;
 			};
 		};
 		17D4926327947B4D0035BD7E /* XCRemoteSwiftPackageReference "Sparkle" */ = {
 			isa = XCRemoteSwiftPackageReference;
 			repositoryURL = "https://github.com/sparkle-project/Sparkle";
 			requirement = {
 				kind = upToNextMinorVersion;
 				minimumVersion = 2.0.0;
 			};
 		};
 /* End XCRemoteSwiftPackageReference section */
 
 /* Begin XCSwiftPackageProductDependency section */
 		1784D2EC27946D880033E72E /* WriteFreely */ = {
 			isa = XCSwiftPackageProductDependency;
 			package = 1784D2EB27946D880033E72E /* XCRemoteSwiftPackageReference "writefreely-swift" */;
 			productName = WriteFreely;
 		};
 		1784D2EE27946D9A0033E72E /* WriteFreely */ = {
 			isa = XCSwiftPackageProductDependency;
 			package = 1784D2EB27946D880033E72E /* XCRemoteSwiftPackageReference "writefreely-swift" */;
 			productName = WriteFreely;
 		};
 		1784D2F027946DA10033E72E /* WriteFreely */ = {
 			isa = XCSwiftPackageProductDependency;
 			package = 1784D2EB27946D880033E72E /* XCRemoteSwiftPackageReference "writefreely-swift" */;
 			productName = WriteFreely;
 		};
 		17D4926427947B4D0035BD7E /* Sparkle */ = {
 			isa = XCSwiftPackageProductDependency;
 			package = 17D4926327947B4D0035BD7E /* XCRemoteSwiftPackageReference "Sparkle" */;
 			productName = Sparkle;
 		};
 /* End XCSwiftPackageProductDependency section */
 
 /* Begin XCVersionGroup section */
 		1756DBB524FED3A400207AB8 /* LocalStorageModel.xcdatamodeld */ = {
 			isa = XCVersionGroup;
 			children = (
 				1756DBB624FED3A400207AB8 /* LocalStorageModel.xcdatamodel */,
 			);
 			currentVersion = 1756DBB624FED3A400207AB8 /* LocalStorageModel.xcdatamodel */;
 			path = LocalStorageModel.xcdatamodeld;
 			sourceTree = "<group>";
 			versionGroupType = wrapper.xcdatamodel;
 		};
 /* End XCVersionGroup section */
 	};
 	rootObject = 17DF327C24C87D3300BCE2E3 /* Project object */;
 }
diff --git a/WriteFreely-MultiPlatform.xcodeproj/xcuserdata/angelo.xcuserdatad/xcschemes/xcschememanagement.plist b/WriteFreely-MultiPlatform.xcodeproj/xcuserdata/angelo.xcuserdatad/xcschemes/xcschememanagement.plist
deleted file mode 100644
index 33a3444..0000000
--- a/WriteFreely-MultiPlatform.xcodeproj/xcuserdata/angelo.xcuserdatad/xcschemes/xcschememanagement.plist
+++ /dev/null
@@ -1,24 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-	<key>SchemeUserState</key>
-	<dict>
-		<key>ActionExtension-iOS.xcscheme_^#shared#^_</key>
-		<dict>
-			<key>orderHint</key>
-			<integer>1</integer>
-		</dict>
-		<key>WriteFreely-MultiPlatform (iOS).xcscheme_^#shared#^_</key>
-		<dict>
-			<key>orderHint</key>
-			<integer>2</integer>
-		</dict>
-		<key>WriteFreely-MultiPlatform (macOS).xcscheme_^#shared#^_</key>
-		<dict>
-			<key>orderHint</key>
-			<integer>0</integer>
-		</dict>
-	</dict>
-</dict>
-</plist>
diff --git a/iOS/PostEditor/PostEditorView.swift b/iOS/PostEditor/PostEditorView.swift
index 7a78ad6..4fed230 100644
--- a/iOS/PostEditor/PostEditorView.swift
+++ b/iOS/PostEditor/PostEditorView.swift
@@ -1,268 +1,275 @@
 import SwiftUI
 
 struct PostEditorView: View {
     @EnvironmentObject var model: WriteFreelyModel
+    @EnvironmentObject var errorHandling: ErrorHandling
     @Environment(\.horizontalSizeClass) var horizontalSizeClass
     @Environment(\.managedObjectContext) var moc
     @Environment(\.presentationMode) var presentationMode
 
     @ObservedObject var post: WFAPost
     @State private var updatingTitleFromServer: Bool = false
     @State private var updatingBodyFromServer: Bool = false
 
     @State private var selectedCollection: WFACollection?
 
     @FetchRequest(
         entity: WFACollection.entity(),
         sortDescriptors: [NSSortDescriptor(keyPath: \WFACollection.title, ascending: true)]
     ) var collections: FetchedResults<WFACollection>
 
     var body: some View {
         VStack {
             if post.hasNewerRemoteCopy {
                 RemoteChangePromptView(
                     remoteChangeType: .remoteCopyUpdated,
                     buttonHandler: { model.updateFromServer(post: post) }
                 )
             } else if post.wasDeletedFromServer {
                 RemoteChangePromptView(
                     remoteChangeType: .remoteCopyDeleted,
                     buttonHandler: {
                         self.presentationMode.wrappedValue.dismiss()
                         DispatchQueue.main.async {
                             model.posts.remove(post)
                         }
                     }
                 )
             }
             PostTextEditingView(
                 post: _post,
                 updatingTitleFromServer: $updatingTitleFromServer,
                 updatingBodyFromServer: $updatingBodyFromServer
             )
+            .withErrorHandling()
         }
         .navigationBarTitleDisplayMode(.inline)
         .padding()
         .toolbar {
             ToolbarItem(placement: .principal) {
                 PostEditorStatusToolbarView(post: post)
             }
             ToolbarItem(placement: .primaryAction) {
                 if model.isProcessingRequest {
                     ProgressView()
                 } else {
                     Menu(content: {
                     if post.status == PostStatus.local.rawValue {
                         Menu(content: {
                             Label("Publish to…", systemImage: "paperplane")
                             Button(action: {
                                 if model.account.isLoggedIn {
                                     post.collectionAlias = nil
                                     publishPost()
                                 } else {
                                     self.model.isPresentingSettingsView = true
                                 }
                             }, label: {
                                 Text("  \(model.account.server == "https://write.as" ? "Anonymous" : "Drafts")")
                             })
                             ForEach(collections) { collection in
                                 Button(action: {
                                     if model.account.isLoggedIn {
                                         post.collectionAlias = collection.alias
                                         publishPost()
                                     } else {
                                         self.model.isPresentingSettingsView = true
                                     }
                                 }, label: {
                                     Text("  \(collection.title)")
                                 })
                             }
                         }, label: {
                             Label("Publish…", systemImage: "paperplane")
                         })
                         .accessibilityHint(Text("Choose the blog you want to publish this post to"))
                         .disabled(post.body.count == 0)
                     } else {
                         Button(action: {
                             if model.account.isLoggedIn {
                                 publishPost()
                             } else {
                                 self.model.isPresentingSettingsView = true
                             }
                         }, label: {
                             Label("Publish", systemImage: "paperplane")
                         })
                         .disabled(post.status == PostStatus.published.rawValue || post.body.count == 0)
                     }
                     Button(action: {
                         sharePost()
                     }, label: {
                         Label("Share", systemImage: "square.and.arrow.up")
                     })
                     .accessibilityHint(Text("Open the system share sheet to share a link to this post"))
                     .disabled(post.postId == nil)
-//                    Button(action: {
-//                        print("Tapped 'Delete...' button")
-//                    }, label: {
-//                        Label("Delete…", systemImage: "trash")
-//                    })
                     if model.account.isLoggedIn && post.status != PostStatus.local.rawValue {
                         Section(header: Text("Move To Collection")) {
                             Label("Move to:", systemImage: "arrowshape.zigzag.right")
                             Picker(selection: $selectedCollection, label: Text("Move to…")) {
                                 Text(
                                     "  \(model.account.server == "https://write.as" ? "Anonymous" : "Drafts")"
                                 ).tag(nil as WFACollection?)
                                 ForEach(collections) { collection in
                                     Text("  \(collection.title)").tag(collection as WFACollection?)
                                 }
                             }
                         }
                     }
                 }, label: {
                     ZStack {
                         Image("does.not.exist")
                             .accessibilityHidden(true)
                         Image(systemName: "ellipsis.circle")
                             .imageScale(.large)
                             .accessibilityHidden(true)
                     }
                 })
                     .accessibilityLabel(Text("Menu"))
                     .accessibilityHint(Text("Opens a context menu to publish, share, or move the post"))
                     .onTapGesture {
                         hideKeyboard()
                     }
                     .disabled(post.body.count == 0)
                 }
             }
         }
         .onChange(of: post.hasNewerRemoteCopy, perform: { _ in
             if !post.hasNewerRemoteCopy {
                 updatingTitleFromServer = true
                 updatingBodyFromServer = true
             }
         })
         .onChange(of: selectedCollection, perform: { [selectedCollection] newCollection in
             if post.collectionAlias == newCollection?.alias {
                 return
             } else {
                 post.collectionAlias = newCollection?.alias
                 model.move(post: post, from: selectedCollection, to: newCollection)
             }
         })
         .onChange(of: post.status, perform: { value in
             if value != PostStatus.published.rawValue {
                 self.model.editor.saveLastDraft(post)
             } else {
                 self.model.editor.clearLastDraft()
             }
             DispatchQueue.main.async {
                 LocalStorageManager.standard.saveContext()
             }
         })
         .onAppear(perform: {
             self.selectedCollection = collections.first { $0.alias == post.collectionAlias }
             if post.status != PostStatus.published.rawValue {
                 DispatchQueue.main.async {
                     self.model.editor.saveLastDraft(post)
                 }
             } else {
                 self.model.editor.clearLastDraft()
             }
         })
+        .onChange(of: model.hasError) { value in
+            if value {
+                if let error = model.currentError {
+                    self.errorHandling.handle(error: error)
+                } else {
+                    self.errorHandling.handle(error: AppError.genericError())
+                }
+                model.hasError = false
+            }
+        }
         .onDisappear(perform: {
             self.model.editor.clearLastDraft()
             if post.title.count == 0
                 && post.body.count == 0
                 && post.status == PostStatus.local.rawValue
                 && post.updatedDate == nil
                 && post.postId == nil {
                 DispatchQueue.main.async {
                     model.posts.remove(post)
                 }
             } else if post.status != PostStatus.published.rawValue {
                 DispatchQueue.main.async {
                     LocalStorageManager.standard.saveContext()
                 }
             }
         })
     }
 
     private func publishPost() {
         DispatchQueue.main.async {
             LocalStorageManager.standard.saveContext()
             model.publish(post: post)
         }
         #if os(iOS)
         self.hideKeyboard()
         #endif
     }
 
     private func sharePost() {
         // If the post doesn't have a post ID, it isn't published, and therefore can't be shared, so return early.
         guard let postId = post.postId else { return }
 
         var urlString: String
 
         if let postSlug = post.slug,
            let postCollectionAlias = post.collectionAlias {
             // This post is in a collection, so share the URL as baseURL/postSlug.
             let urls = collections.filter { $0.alias == postCollectionAlias }
             let baseURL = urls.first?.url ?? "\(model.account.server)/\(postCollectionAlias)/"
             urlString = "\(baseURL)\(postSlug)"
         } else {
             // This is a draft post, so share the URL as server/postID
             urlString = "\(model.account.server)/\(postId)"
         }
 
         guard let data = URL(string: urlString) else { return }
 
         let activityView = UIActivityViewController(activityItems: [data], applicationActivities: nil)
 
         UIApplication.shared.windows.first?.rootViewController?.present(activityView, animated: true, completion: nil)
         if UIDevice.current.userInterfaceIdiom == .pad {
             activityView.popoverPresentationController?.permittedArrowDirections = .up
             activityView.popoverPresentationController?.sourceView = UIApplication.shared.windows.first
             activityView.popoverPresentationController?.sourceRect = CGRect(
                 x: UIScreen.main.bounds.width,
                 y: -125,
                 width: 200,
                 height: 200
             )
         }
     }
 }
 
 struct PostEditorView_EmptyPostPreviews: PreviewProvider {
     static var previews: some View {
         let context = LocalStorageManager.standard.container.viewContext
         let testPost = WFAPost(context: context)
         testPost.createdDate = Date()
         testPost.appearance = "norm"
 
         let model = WriteFreelyModel()
 
         return PostEditorView(post: testPost)
             .environment(\.managedObjectContext, context)
             .environmentObject(model)
     }
 }
 
 struct PostEditorView_ExistingPostPreviews: PreviewProvider {
     static var previews: some View {
         let context = LocalStorageManager.standard.container.viewContext
         let testPost = WFAPost(context: context)
         testPost.title = "Test Post Title"
         testPost.body = "Here's some cool sample body text."
         testPost.createdDate = Date()
         testPost.appearance = "code"
         testPost.hasNewerRemoteCopy = true
 
         let model = WriteFreelyModel()
 
         return PostEditorView(post: testPost)
             .environment(\.managedObjectContext, context)
             .environmentObject(model)
     }
 }
diff --git a/iOS/Settings/SettingsView.swift b/iOS/Settings/SettingsView.swift
index e64bc94..28c55a6 100644
--- a/iOS/Settings/SettingsView.swift
+++ b/iOS/Settings/SettingsView.swift
@@ -1,66 +1,67 @@
 import SwiftUI
 
 struct SettingsView: View {
     @EnvironmentObject var model: WriteFreelyModel
 
     var body: some View {
         VStack {
             SettingsHeaderView()
             Form {
                 Section(header: Text("Login Details")) {
                     AccountView()
+                        .withErrorHandling()
                 }
                 Section(header: Text("Appearance")) {
                     PreferencesView(preferences: model.preferences)
                 }
                 Section(header: Text("External Links")) {
                     HStack {
                         Spacer()
                         Link("View the Guide", destination: model.howToURL)
                         Spacer()
                     }
                     HStack {
                         Spacer()
                         Link("Visit the Help Forum", destination: model.helpURL)
                         Spacer()
                     }
                     HStack {
                         Spacer()
                         Link("Write a Review on the App Store", destination: model.reviewURL)
                         Spacer()
                     }
                 }
                 Section(header: Text("Acknowledgements")) {
                         VStack {
                             VStack(alignment: .leading) {
                                 Text("This application makes use of the following open-source projects:")
                                     .padding(.bottom)
                                 Text("• Lora typeface")
                                     .padding(.leading)
                                 Text("• Open Sans typeface")
                                     .padding(.leading)
                                 Text("• Hack typeface")
                                     .padding(.leading)
                             }
                             .padding(.bottom)
                             .foregroundColor(.secondary)
                             HStack {
                                 Spacer()
                                 Link("View the licenses", destination: model.licensesURL)
                                 Spacer()
                             }
                         }
                         .padding()
                 }
             }
         }
 //        .preferredColorScheme(preferences.selectedColorScheme)    // See PreferencesModel for info.
     }
 }
 
 struct SettingsView_Previews: PreviewProvider {
     static var previews: some View {
         SettingsView()
             .environmentObject(WriteFreelyModel())
     }
 }
diff --git a/macOS/PostEditor/PostEditorView.swift b/macOS/PostEditor/PostEditorView.swift
index 56bedc9..b76e921 100644
--- a/macOS/PostEditor/PostEditorView.swift
+++ b/macOS/PostEditor/PostEditorView.swift
@@ -1,92 +1,103 @@
 import SwiftUI
 
 struct PostEditorView: View {
     @EnvironmentObject var model: WriteFreelyModel
+    @EnvironmentObject var errorHandling: ErrorHandling
 
     @ObservedObject var post: WFAPost
     @State private var isHovering: Bool = false
     @State private var updatingFromServer: Bool = false
 
     var body: some View {
         PostTextEditingView(
             post: post,
             updatingFromServer: $updatingFromServer
         )
         .padding()
         .background(Color(NSColor.controlBackgroundColor))
         .onAppear(perform: {
             if post.status != PostStatus.published.rawValue {
                 DispatchQueue.main.async {
                     self.model.editor.saveLastDraft(post)
                 }
             } else {
                 self.model.editor.clearLastDraft()
             }
         })
         .onChange(of: post.hasNewerRemoteCopy, perform: { _ in
             if !post.hasNewerRemoteCopy {
                 self.updatingFromServer = true
             }
         })
         .onChange(of: post.status, perform: { value in
             if value != PostStatus.published.rawValue {
                 self.model.editor.saveLastDraft(post)
             } else {
                 self.model.editor.clearLastDraft()
             }
             DispatchQueue.main.async {
                 LocalStorageManager.standard.saveContext()
             }
         })
+        .onChange(of: model.hasError) { value in
+            if value {
+                if let error = model.currentError {
+                    self.errorHandling.handle(error: error)
+                } else {
+                    self.errorHandling.handle(error: AppError.genericError())
+                }
+                model.hasError = false
+            }
+        }
         .onDisappear(perform: {
             DispatchQueue.main.async {
                 model.editor.clearLastDraft()
             }
             if post.title.count == 0
                 && post.body.count == 0
                 && post.status == PostStatus.local.rawValue
                 && post.updatedDate == nil
                 && post.postId == nil {
                 DispatchQueue.main.async {
                     model.posts.remove(post)
                 }
             } else if post.status != PostStatus.published.rawValue {
                 DispatchQueue.main.async {
                     LocalStorageManager.standard.saveContext()
                 }
             }
         })
     }
 }
 
 struct PostEditorView_EmptyPostPreviews: PreviewProvider {
     static var previews: some View {
         let context = LocalStorageManager.standard.container.viewContext
         let testPost = WFAPost(context: context)
         testPost.createdDate = Date()
         testPost.appearance = "norm"
 
         let model = WriteFreelyModel()
 
         return PostEditorView(post: testPost)
             .environment(\.managedObjectContext, context)
             .environmentObject(model)
     }
 }
 
 struct PostEditorView_ExistingPostPreviews: PreviewProvider {
     static var previews: some View {
         let context = LocalStorageManager.standard.container.viewContext
         let testPost = WFAPost(context: context)
         testPost.title = "Test Post Title"
         testPost.body = "Here's some cool sample body text."
         testPost.createdDate = Date()
         testPost.appearance = "code"
 
         let model = WriteFreelyModel()
 
         return PostEditorView(post: testPost)
             .environment(\.managedObjectContext, context)
             .environmentObject(model)
     }
 }
diff --git a/macOS/Settings/MacAccountView.swift b/macOS/Settings/MacAccountView.swift
index f0d4c30..9939e99 100644
--- a/macOS/Settings/MacAccountView.swift
+++ b/macOS/Settings/MacAccountView.swift
@@ -1,18 +1,29 @@
 import SwiftUI
 
 struct MacAccountView: View {
     @EnvironmentObject var model: WriteFreelyModel
+    @EnvironmentObject var errorHandling: ErrorHandling
 
     var body: some View {
-            Form {
-                    AccountView()
+        Form {
+            AccountView()
+        }
+        .onChange(of: model.hasError) { value in
+            if value {
+                if let error = model.currentError {
+                    self.errorHandling.handle(error: error)
+                } else {
+                    self.errorHandling.handle(error: AppError.genericError())
+                }
+                model.hasError = false
             }
+        }
     }
 }
 
 struct MacAccountView_Previews: PreviewProvider {
     static var previews: some View {
         MacAccountView()
             .environmentObject(WriteFreelyModel())
     }
 }
diff --git a/macOS/Settings/MacPreferencesView.swift b/macOS/Settings/MacPreferencesView.swift
index 85fa829..feb91e5 100644
--- a/macOS/Settings/MacPreferencesView.swift
+++ b/macOS/Settings/MacPreferencesView.swift
@@ -1,18 +1,31 @@
 import SwiftUI
 
 struct MacPreferencesView: View {
+    @EnvironmentObject var model: WriteFreelyModel
+    @EnvironmentObject var errorHandling: ErrorHandling
+
     @ObservedObject var preferences: PreferencesModel
 
     var body: some View {
         VStack {
             PreferencesView(preferences: preferences)
             Spacer()
         }
+        .onChange(of: model.hasError) { value in
+            if value {
+                if let error = model.currentError {
+                    self.errorHandling.handle(error: error)
+                } else {
+                    self.errorHandling.handle(error: AppError.genericError())
+                }
+                model.hasError = false
+            }
+        }
     }
 }
 
 struct MacPreferencesView_Previews: PreviewProvider {
     static var previews: some View {
         MacPreferencesView(preferences: PreferencesModel())
     }
 }
diff --git a/macOS/Settings/MacUpdatesView.swift b/macOS/Settings/MacUpdatesView.swift
index afb6c48..ba9f6a3 100644
--- a/macOS/Settings/MacUpdatesView.swift
+++ b/macOS/Settings/MacUpdatesView.swift
@@ -1,91 +1,104 @@
 import SwiftUI
 import Sparkle
 
 struct MacUpdatesView: View {
+    @EnvironmentObject var model: WriteFreelyModel
+    @EnvironmentObject var errorHandling: ErrorHandling
+
     @ObservedObject var updaterViewModel: MacUpdatesViewModel
 
     @AppStorage(WFDefaults.automaticallyChecksForUpdates, store: UserDefaults.shared)
     var automaticallyChecksForUpdates: Bool = false
     @AppStorage(WFDefaults.subscribeToBetaUpdates, store: UserDefaults.shared)
     var subscribeToBetaUpdates: Bool = false
 
     @State private var lastUpdateCheck: Date?
 
     private let betaWarningString = """
 To get brand new features before each official release, choose "Test versions." Note that test versions may have bugs \
 that can cause crashes and data loss.
 """
 
     static let lastUpdateFormatter: DateFormatter = {
         let formatter = DateFormatter()
         formatter.dateStyle = .short
         formatter.timeStyle = .short
         formatter.doesRelativeDateFormatting = true
         return formatter
     }()
 
     var body: some View {
         VStack(spacing: 24) {
             Toggle(isOn: $automaticallyChecksForUpdates, label: {
                 Text("Check for updates automatically")
             })
 
             VStack {
                 Button(action: {
                     updaterViewModel.checkForUpdates()
                     // There's a delay between requesting an update, and the timestamp for that update request being
                     // written to user defaults; we therefore delay updating the "Last checked" UI for one second.
                     DispatchQueue.main.asyncAfter(deadline: .now() + 1) {
                         lastUpdateCheck = updaterViewModel.getLastUpdateCheckDate()
                     }
                 }, label: {
                     Text("Check For Updates")
                 })
 
                 HStack {
                     Text("Last checked:")
                         .font(.caption)
                     if let lastUpdateCheck = lastUpdateCheck {
                         Text(lastUpdateCheck, formatter: Self.lastUpdateFormatter)
                             .font(.caption)
                     } else {
                         Text("Never")
                             .font(.caption)
                     }
                 }
             }
 
             VStack(spacing: 16) {
                 HStack(alignment: .top) {
                     Text("Download:")
                     Picker(selection: $subscribeToBetaUpdates, label: Text("Download:"), content: {
                         Text("Release versions").tag(false)
                         Text("Test versions").tag(true)
                     })
                     .pickerStyle(RadioGroupPickerStyle())
                     .labelsHidden()
                 }
 
                 Text(betaWarningString)
                     .frame(width: 350)
                     .foregroundColor(.secondary)
             }
         }
         .padding()
         .onAppear {
             lastUpdateCheck = updaterViewModel.getLastUpdateCheckDate()
         }
         .onChange(of: automaticallyChecksForUpdates) { value in
             updaterViewModel.automaticallyCheckForUpdates = value
         }
         .onChange(of: subscribeToBetaUpdates) { _ in
             updaterViewModel.toggleAllowedChannels()
         }
+        .onChange(of: model.hasError) { value in
+            if value {
+                if let error = model.currentError {
+                    self.errorHandling.handle(error: error)
+                } else {
+                    self.errorHandling.handle(error: AppError.genericError())
+                }
+                model.hasError = false
+            }
+        }
     }
 }
 
 struct MacUpdatesView_Previews: PreviewProvider {
     static var previews: some View {
         MacUpdatesView(updaterViewModel: MacUpdatesViewModel())
     }
 }