diff --git a/Core/Sources/Core/RSScreen.swift b/Core/Sources/Core/RSScreen.swift
index 4fee278db..78fd8faed 100644
--- a/Core/Sources/Core/RSScreen.swift
+++ b/Core/Sources/Core/RSScreen.swift
@@ -10,7 +10,7 @@
 import AppKit
 
 public class RSScreen {
-	public static var maxScreenScale = CGFloat(2)
+	public static let maxScreenScale = CGFloat(2)
 }
 
 #endif
@@ -19,7 +19,7 @@ public class RSScreen {
 import UIKit
 
 public class RSScreen {
-	public static var maxScreenScale = CGFloat(3)
+	public static let maxScreenScale = CGFloat(3)
 }
 
 #endif
diff --git a/Mac/AppAssets.swift b/Mac/AppAssets.swift
index a71a44364..f445b5692 100644
--- a/Mac/AppAssets.swift
+++ b/Mac/AppAssets.swift
@@ -71,6 +71,7 @@ struct AppAssets {
 
 	static let legacyArticleExtractorProgress4 = NSImage(named: "legacyArticleExtractorProgress4")
 
+	@MainActor
 	static let folderImage: IconImage = {
 		let image = NSImage(systemSymbolName: "folder", accessibilityDescription: nil)!
 		let preferredColor = NSColor(named: "AccentColor")!
@@ -96,6 +97,7 @@ struct AppAssets {
 	
 	static let refreshImage = NSImage(systemSymbolName: "arrow.clockwise", accessibilityDescription: nil)!
 
+	@MainActor
 	static let searchFeedImage: IconImage = {
 		return IconImage(NSImage(named: NSImage.smartBadgeTemplateName)!, isSymbol: true, isBackgroundSupressed: true)
 	}()
@@ -108,6 +110,7 @@ struct AppAssets {
 
 	static let starOpenImage = NSImage(systemSymbolName: "star", accessibilityDescription: nil)!
 
+	@MainActor
 	static let starredFeedImage: IconImage = {
 		let image = NSImage(systemSymbolName: "star.fill", accessibilityDescription: nil)!
 		let preferredColor = NSColor(named: "StarColor")!
@@ -121,6 +124,7 @@ struct AppAssets {
 
 	static let timelineStarUnselected = NSImage(named: "timelineStar")?.tinted(with: starColor)
 
+	@MainActor
 	static let todayFeedImage: IconImage = {
 		let image = NSImage(systemSymbolName: "sun.max.fill", accessibilityDescription: nil)!
 		let preferredColor = NSColor.orange
@@ -128,6 +132,7 @@ struct AppAssets {
 		return IconImage(coloredImage, isSymbol: true, isBackgroundSupressed: true, preferredColor: preferredColor.cgColor)
 	}()
 
+	@MainActor
 	static let unreadFeedImage: IconImage = {
 		let image = NSImage(systemSymbolName: "largecircle.fill.circle", accessibilityDescription: nil)!
 		let preferredColor = NSColor(named: "AccentColor")!
diff --git a/Mac/ErrorHandler.swift b/Mac/ErrorHandler.swift
index 258712b5e..33ff42275 100644
--- a/Mac/ErrorHandler.swift
+++ b/Mac/ErrorHandler.swift
@@ -10,6 +10,11 @@ import AppKit
 import Account
 import os.log
 
+// asserts that OSLog is a sendable type
+// @preconcurrency import os.log _should_ resolve the warning in this scenario, but does
+// not due to a bug (in Swift 5.10)
+extension OSLog: @unchecked Sendable { }
+
 struct ErrorHandler {
 
 	private static let log = OSLog(subsystem: Bundle.main.bundleIdentifier!, category: "Account")
diff --git a/Shared/ArticleStyles/ArticleTheme.swift b/Shared/ArticleStyles/ArticleTheme.swift
index 302c45a53..832e4ef8b 100644
--- a/Shared/ArticleStyles/ArticleTheme.swift
+++ b/Shared/ArticleStyles/ArticleTheme.swift
@@ -8,7 +8,7 @@
 
 import Foundation
 
-struct ArticleTheme: Equatable {
+struct ArticleTheme: Equatable, Sendable {
 	
 	static let defaultTheme = ArticleTheme()
 	static let nnwThemeSuffix = ".nnwtheme"
diff --git a/Shared/ArticleStyles/ArticleThemePlist.swift b/Shared/ArticleStyles/ArticleThemePlist.swift
index f324cdbde..b18a38146 100644
--- a/Shared/ArticleStyles/ArticleThemePlist.swift
+++ b/Shared/ArticleStyles/ArticleThemePlist.swift
@@ -8,7 +8,7 @@
 
 import Foundation
 
-public struct ArticleThemePlist: Codable, Equatable {
+public struct ArticleThemePlist: Codable, Equatable, Sendable {
 	public var name: String
 	public var themeIdentifier: String
 	public var creatorHomePage: String
diff --git a/Shared/Extensions/RSImage-AppIcons.swift b/Shared/Extensions/RSImage-AppIcons.swift
index 04964d85d..2015d1284 100644
--- a/Shared/Extensions/RSImage-AppIcons.swift
+++ b/Shared/Extensions/RSImage-AppIcons.swift
@@ -27,7 +27,7 @@ extension RSImage {
 }
 
 extension IconImage {
-	static var appIcon: IconImage? = {
+	static let appIcon: IconImage? = {
 		if let image = RSImage.appIconImage {
 			return IconImage(image)
 		}