diff --git a/build/scripts/linux/build-avalonia-packages.sh b/build/scripts/linux/build-avalonia-packages.sh
index 6a35814..8a3b868 100644
--- a/build/scripts/linux/build-avalonia-packages.sh
+++ b/build/scripts/linux/build-avalonia-packages.sh
@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 set -euo pipefail
 
-REPO_ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/../.." && pwd)"
+REPO_ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/../../.." && pwd)"
 PROJECT_PATH="$REPO_ROOT/src/GregModmanager.Avalonia/GregModmanager.Avalonia.csproj"
 OUTPUT_ROOT="${1:-$REPO_ROOT/artifacts/avalonia-linux}"
 VERSION="${2:-1.1.0}"
diff --git a/global.json b/global.json
index c071e6f..badcd44 100644
--- a/global.json
+++ b/global.json
@@ -1,6 +1,6 @@
 {
   "sdk": {
-    "version": "9.0.313",
+    "version": "10.0.103",
     "rollForward": "minor"
   }
 }
diff --git a/src/GregModmanager.Avalonia/App.axaml.cs b/src/GregModmanager.Avalonia/App.axaml.cs
index 08ae8af..9a7f325 100644
--- a/src/GregModmanager.Avalonia/App.axaml.cs
+++ b/src/GregModmanager.Avalonia/App.axaml.cs
@@ -21,12 +21,12 @@ public override void OnFrameworkInitializationCompleted()
         
         var telemetry = Services.GetRequiredService<TelemetryService>();
         _ = telemetry.ReportCrashesAsync();
-        _ = telemetry.TrackEventAsync("startup", new 
+        _ = telemetry.TrackEventAsync("startup", new GregModmanager.Models.AppStartupEvent
         {
-            steamActive = GregModmanager.Steam.SteamApiNativeLoader.IsLoaded,
-            culture = System.Globalization.CultureInfo.CurrentCulture.Name,
-            osDescription = System.Runtime.InteropServices.RuntimeInformation.OSDescription,
-            dotNetVersion = System.Runtime.InteropServices.RuntimeInformation.FrameworkDescription
+            SteamActive = GregModmanager.Steam.SteamApiNativeLoader.IsLoaded,
+            Culture = System.Globalization.CultureInfo.CurrentCulture.Name,
+            OsDescription = System.Runtime.InteropServices.RuntimeInformation.OSDescription,
+            DotNetVersion = System.Runtime.InteropServices.RuntimeInformation.FrameworkDescription
         });
 
         if (ApplicationLifetime is IClassicDesktopStyleApplicationLifetime desktop)
diff --git a/src/GregModmanager.Core/Models/AppJsonContext.cs b/src/GregModmanager.Core/Models/AppJsonContext.cs
index d7fe96d..403d8dd 100644
--- a/src/GregModmanager.Core/Models/AppJsonContext.cs
+++ b/src/GregModmanager.Core/Models/AppJsonContext.cs
@@ -34,6 +34,7 @@ namespace GregModmanager.Models;
 [JsonSerializable(typeof(int))]
 [JsonSerializable(typeof(RalphTaskStatus))]
 [JsonSerializable(typeof(AssetModMetadata))]
+[JsonSerializable(typeof(AppStartupEvent))]
 public partial class AppJsonContext : JsonSerializerContext
 {
 }
diff --git a/src/GregModmanager.Core/Models/AppStartupEvent.cs b/src/GregModmanager.Core/Models/AppStartupEvent.cs
new file mode 100644
index 0000000..02d8ae1
--- /dev/null
+++ b/src/GregModmanager.Core/Models/AppStartupEvent.cs
@@ -0,0 +1,9 @@
+namespace GregModmanager.Models;
+
+public class AppStartupEvent
+{
+    public bool SteamActive { get; set; }
+    public string Culture { get; set; } = "";
+    public string OsDescription { get; set; } = "";
+    public string DotNetVersion { get; set; } = "";
+}
diff --git a/src/GregModmanager.Core/Services/ModCollectionService.cs b/src/GregModmanager.Core/Services/ModCollectionService.cs
index 1a9f4f4..c16ff92 100644
--- a/src/GregModmanager.Core/Services/ModCollectionService.cs
+++ b/src/GregModmanager.Core/Services/ModCollectionService.cs
@@ -234,8 +234,8 @@ private CollectionCatalog LoadCatalog()
 				return new CollectionCatalog();
 			}
 
-			var json = File.ReadAllText(_storagePath);
-			return JsonSerializer.Deserialize(json, AppJsonContext.Default.CollectionCatalog) ?? new CollectionCatalog();
+			using var stream = File.OpenRead(_storagePath);
+			return JsonSerializer.Deserialize(stream, AppJsonContext.Default.CollectionCatalog) ?? new CollectionCatalog();
 		}
 		catch
 		{
@@ -245,6 +245,7 @@ private CollectionCatalog LoadCatalog()
 
 	private void SaveCatalog()
 	{
-		File.WriteAllText(_storagePath, JsonSerializer.Serialize(_catalog, AppJsonContext.Default.CollectionCatalog));
+		using var stream = new FileStream(_storagePath, FileMode.Create, FileAccess.Write, FileShare.None, bufferSize: 32768);
+		JsonSerializer.Serialize(stream, _catalog, AppJsonContext.Default.CollectionCatalog);
 	}
 }
\ No newline at end of file
diff --git a/src/GregModmanager.Core/Services/TelemetryService.cs b/src/GregModmanager.Core/Services/TelemetryService.cs
index 8531b66..078d396 100644
--- a/src/GregModmanager.Core/Services/TelemetryService.cs
+++ b/src/GregModmanager.Core/Services/TelemetryService.cs
@@ -96,11 +96,19 @@ public async Task TrackEventAsync(string eventName, object payload, Dictionary<s
             foreach (var kvp in extraLabels) labels[kvp.Key] = kvp.Value;
         }
 
-        var message = payload switch
+        string message = "";
+        if (payload is SyncCollectionEvent sync)
         {
-            SyncCollectionEvent sync => JsonSerializer.Serialize(sync, AppJsonContext.Default.SyncCollectionEvent),
-            _ => JsonSerializer.Serialize(payload, payload.GetType(), AppJsonContext.Default.Options)
-        };
+            message = JsonSerializer.Serialize(sync, AppJsonContext.Default.SyncCollectionEvent);
+        }
+        else if (payload is AppStartupEvent startup)
+        {
+            message = JsonSerializer.Serialize(startup, AppJsonContext.Default.AppStartupEvent);
+        }
+        else if (payload != null)
+        {
+            message = JsonSerializer.Serialize(payload.ToString(), AppJsonContext.Default.String);
+        }
 
         await PushToLokiAsync(eventName, message, labels);
     }