diff --git a/App/UI/Keyboard/TerminalKeyInput.swift b/App/UI/Keyboard/TerminalKeyInput.swift
index a0131ca..e8ef85e 100644
--- a/App/UI/Keyboard/TerminalKeyInput.swift
+++ b/App/UI/Keyboard/TerminalKeyInput.swift
@@ -89,14 +89,12 @@ class TerminalKeyInput: TextInputBase {
 			inputAssistantItem.allowsHidingShortcuts = false
 
 			if #available(iOS 16, *) {
-				#if swift(>=5.7)
 				inputAssistantItem.leadingBarButtonGroups += [
 					.fixedGroup(items: [UIBarButtonItem(customView: leadingView)])
 				]
 				inputAssistantItem.trailingBarButtonGroups += [
 					.fixedGroup(items: [UIBarButtonItem(customView: trailingView)])
 				]
-				#endif
 			} else {
 				inputAssistantItem.leadingBarButtonGroups += [
 					UIBarButtonItemGroup(barButtonItems: [UIBarButtonItem(customView: leadingView)], representativeItem: nil)
diff --git a/App/UI/Settings/SettingsPerformanceView.swift b/App/UI/Settings/SettingsPerformanceView.swift
index 45f6963..fcdb04c 100644
--- a/App/UI/Settings/SettingsPerformanceView.swift
+++ b/App/UI/Settings/SettingsPerformanceView.swift
@@ -13,10 +13,6 @@ struct SettingsPerformanceView: View {
 	private struct RefreshRate: Hashable {
 		var rate: Int
 		var name: String
-
-		func hash(into hasher: inout Hasher) {
-			hasher.combine(rate)
-		}
 	}
 
 	private let refreshRates = [
diff --git a/Common/VT100/StringSupplier.swift b/Common/VT100/StringSupplier.swift
index 85cb329..5114d2c 100644
--- a/Common/VT100/StringSupplier.swift
+++ b/Common/VT100/StringSupplier.swift
@@ -10,15 +10,9 @@ import SwiftTerm
 import SwiftUI
 
 fileprivate extension View {
-	#if swift(>=5.7)
 	static func + (lhs: Self, rhs: some View) -> AnyView {
 		AnyView(ViewBuilder.buildBlock(lhs, AnyView(rhs)))
 	}
-	#else
-	static func + (lhs: Self, rhs: AnyView) -> AnyView {
-		AnyView(ViewBuilder.buildBlock(lhs, rhs))
-	}
-	#endif
 }
 
 open class StringSupplier {
@@ -110,7 +104,7 @@ open class StringSupplier {
 			font = attribute.style.contains(.italic) ? fontMetrics?.italicFont : fontMetrics?.regularFont
 		}
 
-		let width = CGFloat(run.unicodeScalars.reduce(0, { $0 + UnicodeUtil.columnWidth(rune: $1) })) * fontMetrics!.width
+		let width = CGFloat(run.unicodeScalars.reduce(0, { $0 + UnicodeUtil.columnWidth(rune: $1) })) * (fontMetrics?.width ?? 0)
 
 		return AnyView(
 			Text(run)