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Cable/ContentView.swift

@@ -2,27 +2,8 @@ import SwiftUI
 import SwiftData
 
 struct ContentView: View {
-    @EnvironmentObject var unitSettings: UnitSystemSettings
-    @State private var selection = 1
-    
     var body: some View {
-        TabView(selection: $selection) {
-            SystemsView()
-                .tabItem {
-                    Label("Systems", systemImage: "building.2")
-                }
-                .tag(1)
-            SystemView()
-                .tabItem {
-                    Label("System", systemImage: "square.grid.3x2")
-                }
-                .tag(2)
-            SettingsView()
-                .tabItem {
-                    Label("Settings", systemImage: "gearshape")
-                }
-                .tag(3)
-        }
+        SystemsView()
     }
 }
 
@@ -32,6 +13,7 @@ struct SystemsView: View {
     @Query(sort: \ElectricalSystem.timestamp, order: .reverse) private var systems: [ElectricalSystem]
     @State private var systemNavigationTarget: SystemNavigationTarget?
     @State private var showingComponentLibrary = false
+    @State private var showingSettings = false
 
     private struct SystemNavigationTarget: Identifiable, Hashable {
         let id = UUID()
@@ -94,6 +76,13 @@ struct SystemsView: View {
             }
             .navigationTitle("Systems")
             .toolbar {
+                ToolbarItem(placement: .navigationBarLeading) {
+                    Button {
+                        showingSettings = true
+                    } label: {
+                        Image(systemName: "gearshape")
+                    }
+                }
                 ToolbarItem(placement: .navigationBarTrailing) {
                     HStack {
                         Button(action: {
@@ -118,6 +107,10 @@ struct SystemsView: View {
                 addComponentFromLibrary(item)
             }
         }
+        .sheet(isPresented: $showingSettings) {
+            SettingsView()
+                .environmentObject(unitSettings)
+        }
     }
     
     private var systemsEmptyState: some View {