diff --git a/Source/App/AppConfiguration+Data.swift b/Source/App/AppConfiguration+Data.swift
index a654084457..d33ef71926 100644
--- a/Source/App/AppConfiguration+Data.swift
+++ b/Source/App/AppConfiguration+Data.swift
@@ -18,9 +18,10 @@ extension AppConfiguration {
     }
 
     static func from(_ data: Data) -> AppConfiguration? {
-        guard let object = try? NSKeyedUnarchiver.unarchiveTopLevelObjectWithData(data) else { return nil }
-        let configuration = object as? AppConfiguration
-        if configuration == nil { Log.unexpected(.missingValue, "Configuration could not be unarchived") }
+        guard let configuration = try? NSKeyedUnarchiver.unarchivedObject(ofClass: AppConfiguration.self, from: data) else {
+            Log.unexpected(.missingValue, "Configuration could not be unarchived")
+            return nil
+        }
         return configuration
     }
 }
diff --git a/Source/Controller/BlobViewController.swift b/Source/Controller/BlobViewController.swift
index 414c634983..743c40a4e4 100644
--- a/Source/Controller/BlobViewController.swift
+++ b/Source/Controller/BlobViewController.swift
@@ -58,6 +58,10 @@ class BlobViewController: ContentViewController {
         forgetBlobCompletion()
 
         Task { @MainActor [weak self] in
+            guard let blob = self?.blob else {
+                return
+            }
+
             // cached image
             if let uiImage = Caches.blobs.image(for: blob) {
                 self?.imageView.image = uiImage
diff --git a/Source/Controller/LaunchViewController.swift b/Source/Controller/LaunchViewController.swift
index 4624fc8023..ba424e02e7 100644
--- a/Source/Controller/LaunchViewController.swift
+++ b/Source/Controller/LaunchViewController.swift
@@ -82,7 +82,7 @@ class LaunchViewController: UIViewController {
         }
 
         // if no configuration then onboard
-        guard var configuration = appConfiguration else {
+        guard let configuration = appConfiguration else {
             launchIntoOnboarding()
             return
         }
diff --git a/Source/Controller/ThreadViewController.swift b/Source/Controller/ThreadViewController.swift
index d98a9c014c..d3191b6dfd 100644
--- a/Source/Controller/ThreadViewController.swift
+++ b/Source/Controller/ThreadViewController.swift
@@ -351,7 +351,6 @@ class ThreadViewController: ContentViewController {
         let post = Post(attributedText: text, root: self.rootKey, branches: [self.branchKey])
         let images = self.galleryView.images
         let draftStore = draftStore
-        let textValue = AttributedString(text)
         Task.detached(priority: .userInitiated) {
             do {
                 let messageID = try await Bots.current.publish(post, with: images)
diff --git a/Source/Onboarding/Steps/JoinOnboardingStep.swift b/Source/Onboarding/Steps/JoinOnboardingStep.swift
index ab17fbc912..1a97eae62e 100644
--- a/Source/Onboarding/Steps/JoinOnboardingStep.swift
+++ b/Source/Onboarding/Steps/JoinOnboardingStep.swift
@@ -34,7 +34,7 @@ import CrashReporting
         }
 
         Task { [weak self] in
-            var context: Onboarding.Context?
+            let context: Onboarding.Context?
             
             do {
                 context = try await Onboarding.createProfile(from: data)
diff --git a/Source/UI/Identity/ImageMetadataView.swift b/Source/UI/Identity/ImageMetadataView.swift
index 4a3aaa873b..2e859d1361 100644
--- a/Source/UI/Identity/ImageMetadataView.swift
+++ b/Source/UI/Identity/ImageMetadataView.swift
@@ -67,7 +67,7 @@ fileprivate class ImageLoader: ObservableObject {
 
         await MainActor.run { [weak self] in
             guard let metadata = metadata, metadata.link != .null else {
-                isLoading = false
+                self?.isLoading = false
                 return
             }
 
diff --git a/Source/UI/ManageAliasView.swift b/Source/UI/ManageAliasView.swift
index fdfead6d9b..05db00795a 100644
--- a/Source/UI/ManageAliasView.swift
+++ b/Source/UI/ManageAliasView.swift
@@ -19,7 +19,7 @@ struct RoomAlias: Identifiable {
     var authorID: Int64
     
     var alias: String {
-        var components = string.replacingOccurrences(of: "https://", with: "")
+        let components = string.replacingOccurrences(of: "https://", with: "")
             .replacingOccurrences(of: "http://", with: "")
             .components(separatedBy: ".")
         return components.joined(separator: ".")