diff --git a/OpenDreamPackageTool/Program.cs b/OpenDreamPackageTool/Program.cs
index 2c56bc54e6..5da86d3830 100644
--- a/OpenDreamPackageTool/Program.cs
+++ b/OpenDreamPackageTool/Program.cs
@@ -9,18 +9,18 @@ public class Options {
     }
 
     public class ServerOptions : Options {
-        public PlatformReg? Platform;
+        public string? Platform;
         public bool HybridAcz;
         public bool InPlatformSubDir = true;
         public bool TgsEngineBuild;
     }
 
     public class ClientOptions : Options {
-        public PlatformReg? Platform;
+
     }
 
     public class TgsOptions : Options {
-        public PlatformReg? Platform;
+        // Avoid adding arguments for TGS, to give us more flexibility while keeping compatibility
     }
 
     public static readonly string[] SharedIgnoredResources = {
@@ -97,21 +97,13 @@ private static bool TryParseArgs(string[] args, [NotNullWhen(true)] out Options?
                             return false;
                         }
 
-                        var platformRId = args[++i];
-
-                        serverOptions.Platform =
-                            ServerPackaging.Platforms.First(p => p.RId == platformRId);
-                        if (serverOptions.Platform == null) {
-                            Console.Error.WriteLine($"Invalid platform '{platformRId}'");
-                            return false;
-                        }
-
+                        serverOptions.Platform = args[++i];
                         break;
                     case "--hybrid-acz":
                         serverOptions.HybridAcz = true;
                         break;
                     default:
-                        Console.Error.WriteLine($"Unknown argument '{arg}'");
+                        Console.Error.WriteLine($"Invalid argument '{arg}'");
                         return false;
                 }
             }
@@ -135,7 +127,7 @@ private static bool TryParseArgs(string[] args, [NotNullWhen(true)] out Options?
                         clientOptions.SkipBuild = true;
                         break;
                     default:
-                        Console.Error.WriteLine($"Unknown argument '{arg}'");
+                        Console.Error.WriteLine($"Invalid argument '{arg}'");
                         return false;
                 }
             }
@@ -157,35 +149,13 @@ private static bool TryParseArgs(string[] args, [NotNullWhen(true)] out Options?
                         break;
                     case "--skip-build":
                         tgsOptions.SkipBuild = true;
-                        break;
-                    case "--platform":
-                    case "-p":
-                        if (i + 1 >= args.Length) {
-                            Console.Error.WriteLine("No platform given");
-                            return false;
-                        }
-
-                        var platformRId = args[++i];
-
-                        tgsOptions.Platform =
-                            ServerPackaging.Platforms.First(p => p.RId == platformRId);
-                        if (tgsOptions.Platform == null) {
-                            Console.Error.WriteLine($"Invalid platform '{platformRId}'");
-                            return false;
-                        }
-
                         break;
                     default:
-                        Console.Error.WriteLine($"Unknown argument '{arg}'");
+                        Console.Error.WriteLine($"Invalid argument '{arg}'");
                         return false;
                 }
             }
 
-            if (tgsOptions.Platform == null) {
-                Console.Error.WriteLine("A '--platform' argument is required for a tgs package");
-                return false;
-            }
-
             return true;
         }
 
diff --git a/OpenDreamPackageTool/ServerPackaging.cs b/OpenDreamPackageTool/ServerPackaging.cs
index fdc83c4023..5517f8ae10 100644
--- a/OpenDreamPackageTool/ServerPackaging.cs
+++ b/OpenDreamPackageTool/ServerPackaging.cs
@@ -5,7 +5,7 @@
 namespace OpenDreamPackageTool;
 
 public static class ServerPackaging {
-    public static readonly PlatformReg[] Platforms = {
+    private static readonly PlatformReg[] Platforms = {
         new("win-x64", "Windows", true),
         new("linux-x64", "Linux", true),
         new("linux-arm64", "Linux", true),
@@ -64,16 +64,17 @@ public static class ServerPackaging {
         "zh-Hant"
     };
 
-    public static IEnumerable<string> PlatformRIds => Platforms.Select(platform => platform.RId);
-
-    public static IEnumerable<PlatformReg> PlatformsDefault => Platforms.Where(platform => platform.BuildByDefault);
+    private static IEnumerable<PlatformReg> PlatformsDefault => Platforms.Where(platform => platform.BuildByDefault);
 
     public static void Package(Program.ServerOptions options) {
-        IEnumerable<PlatformReg> platforms = (options.Platform != null) ? new[] {options.Platform} : PlatformsDefault;
+        IEnumerable<PlatformReg> platforms = PlatformsDefault;
+        if (options.Platform != null) {
+            platforms = new[] { GetPlatform(options.Platform) };
+        }
 
         if (!options.InPlatformSubDir && options.Platform == null) {
             Console.Error.WriteLine(
-                "Packaging the server without a platform subdirectory requires selecting a single platform");
+                "Packaging the server without a platform subdirectory requires a '--platform' argument");
         }
 
         if (Directory.Exists(options.OutputDir)) {
@@ -99,6 +100,14 @@ public static void Package(Program.ServerOptions options) {
         }
     }
 
+    public static PlatformReg GetPlatform(string rId) {
+        var platform = Platforms.FirstOrDefault(p => p.RId == rId);
+        if (platform == null)
+            throw new NotSupportedException($"Platform \"{rId}\" is not supported");
+
+        return platform;
+    }
+
     private static void BuildPlatform(PlatformReg platform, Program.ServerOptions options) {
         Console.WriteLine($"Building project for {platform.RId}");
 
diff --git a/OpenDreamPackageTool/TgsPackaging.cs b/OpenDreamPackageTool/TgsPackaging.cs
index cab39c5923..78a5a90894 100644
--- a/OpenDreamPackageTool/TgsPackaging.cs
+++ b/OpenDreamPackageTool/TgsPackaging.cs
@@ -1,4 +1,5 @@
 using System.Diagnostics;
+using System.Runtime.InteropServices;
 using Robust.Packaging.Utility;
 
 namespace OpenDreamPackageTool;
@@ -10,17 +11,18 @@ public static void Package(Program.TgsOptions options) {
             Directory.Delete(options.OutputDir, true);
         }
 
+        var platform = DeterminePlatform();
+
         // Package the server to <output dir>/bin/server
         ServerPackaging.Package(new Program.ServerOptions {
             OutputDir = Path.Combine(options.OutputDir, "bin", "server"),
-            Platform = options.Platform,
+            Platform = platform.RId,
             HybridAcz = true, // Force Hybrid ACZ with TGS
             SkipBuild = options.SkipBuild,
             InPlatformSubDir = false,
             TgsEngineBuild = true
         });
 
-        var platform = options.Platform!;
         if (!options.SkipBuild) {
             ProcessHelpers.RunCheck(new ProcessStartInfo {
                 FileName = "dotnet",
@@ -57,4 +59,32 @@ private static void PublishCompiler(string platformRId, string targetOs) {
             }
         }).Wait();
     }
+
+    /// <summary>
+    /// Determine what platform to package for, based on what OS we're currently running on
+    /// </summary>
+    /// <returns>The platform</returns>
+    private static PlatformReg DeterminePlatform() {
+        string rId;
+        if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows)) {
+            rId = "win";
+        } else if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux)) {
+            rId = "linux";
+        } else if (RuntimeInformation.IsOSPlatform(OSPlatform.OSX)) {
+            rId = "osx";
+        } else {
+            throw new NotSupportedException("Your OS is not supported");
+        }
+
+        rId += RuntimeInformation.OSArchitecture switch {
+            Architecture.X64 => "-x64",
+            Architecture.X86 => "-x86",
+            Architecture.Arm64 => "-arm64",
+            Architecture.Arm => "-arm",
+            _ => throw new NotSupportedException(
+                $"Your architecture ({RuntimeInformation.OSArchitecture}) is not supported")
+        };
+
+        return ServerPackaging.GetPlatform(rId);
+    }
 }