diff --git a/TeamsISO.Linux.slnf b/TeamsISO.Linux.slnf
index 1bf2820..8b9ed27 100644
--- a/TeamsISO.Linux.slnf
+++ b/TeamsISO.Linux.slnf
@@ -4,6 +4,7 @@
     "projects": [
       "src/TeamsISO.Engine/TeamsISO.Engine.csproj",
       "src/TeamsISO.Engine.NdiInterop/TeamsISO.Engine.NdiInterop.csproj",
+      "src/TeamsISO.Console/TeamsISO.Console.csproj",
       "src/tests/TeamsISO.Engine.Tests/TeamsISO.Engine.Tests.csproj",
       "src/tests/TeamsISO.Engine.IntegrationTests/TeamsISO.Engine.IntegrationTests.csproj"
     ]
diff --git a/TeamsISO.sln b/TeamsISO.sln
index a82d73c..957216f 100644
--- a/TeamsISO.sln
+++ b/TeamsISO.sln
@@ -17,6 +17,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "TeamsISO.App", "src\TeamsIS
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "TeamsISO.Engine.IntegrationTests", "src\tests\TeamsISO.Engine.IntegrationTests\TeamsISO.Engine.IntegrationTests.csproj", "{A85E331D-026E-4BDE-B89C-0CC4C95001CE}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "TeamsISO.Console", "src\TeamsISO.Console\TeamsISO.Console.csproj", "{C3254998-9428-4264-A8FB-EAC9E1F9F432}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -46,6 +48,10 @@ Global
 		{A85E331D-026E-4BDE-B89C-0CC4C95001CE}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{A85E331D-026E-4BDE-B89C-0CC4C95001CE}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{A85E331D-026E-4BDE-B89C-0CC4C95001CE}.Release|Any CPU.Build.0 = Release|Any CPU
+		{C3254998-9428-4264-A8FB-EAC9E1F9F432}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{C3254998-9428-4264-A8FB-EAC9E1F9F432}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{C3254998-9428-4264-A8FB-EAC9E1F9F432}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{C3254998-9428-4264-A8FB-EAC9E1F9F432}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(NestedProjects) = preSolution
 		{F0D24EAE-9225-4DC4-B3D2-6966077287A0} = {46E05E34-8A87-4986-87D3-FE0DE4E05F44}
@@ -54,5 +60,6 @@ Global
 		{F8DBD7AB-E160-4B75-88FC-BAECDD4D44E8} = {DBDF4A1D-4215-42D5-B456-2CE7159DF848}
 		{80DCE039-3BBC-4D3F-B44B-51F324591C29} = {46E05E34-8A87-4986-87D3-FE0DE4E05F44}
 		{A85E331D-026E-4BDE-B89C-0CC4C95001CE} = {DBDF4A1D-4215-42D5-B456-2CE7159DF848}
+		{C3254998-9428-4264-A8FB-EAC9E1F9F432} = {46E05E34-8A87-4986-87D3-FE0DE4E05F44}
 	EndGlobalSection
 EndGlobal
diff --git a/src/TeamsISO.Console/Program.cs b/src/TeamsISO.Console/Program.cs
new file mode 100644
index 0000000..43e1363
--- /dev/null
+++ b/src/TeamsISO.Console/Program.cs
@@ -0,0 +1,126 @@
+using System.Reactive.Linq;
+using Microsoft.Extensions.Logging;
+using TeamsISO.Engine.Controller;
+using TeamsISO.Engine.Domain;
+using TeamsISO.Engine.Interop;
+using TeamsISO.Engine.Logging;
+using TeamsISO.Engine.NdiInterop;
+using TeamsISO.Engine.Persistence;
+using TeamsISO.Engine.Pipeline;
+
+namespace TeamsISO.Console;
+
+/// <summary>
+/// Headless smoke runner. Wires up the engine end-to-end against the production NDI P/Invoke
+/// interop and prints participant updates, alerts, and ISO state. Useful for first-validation
+/// against a real Teams meeting before the WPF UI is alive.
+///
+/// Requires Windows + the NDI Runtime installed.
+///
+/// Usage:
+///   teamsiso-console                   # discover only — print participants as they appear/leave
+///   teamsiso-console --enable-all      # auto-enable an ISO for every discovered participant
+/// </summary>
+public static class Program
+{
+    public static async Task<int> Main(string[] args)
+    {
+        var enableAll = args.Contains("--enable-all", StringComparer.OrdinalIgnoreCase);
+        using var loggerFactory = EngineLogging.CreateConsole(LogLevel.Information);
+        var logger = loggerFactory.CreateLogger("TeamsISO.Console");
+
+        if (!OperatingSystem.IsWindows())
+        {
+            logger.LogError("TeamsISO.Console requires Windows + the NDI Runtime. Current OS is not Windows.");
+            return 1;
+        }
+
+        NdiInteropPInvoke interop;
+        try
+        {
+            interop = new NdiInteropPInvoke(loggerFactory.CreateLogger<NdiInteropPInvoke>());
+        }
+        catch (Exception ex)
+        {
+            logger.LogError(ex, "Could not initialize NDI runtime. Install the NDI Runtime from https://ndi.video/tools/ and try again.");
+            return 2;
+        }
+
+        var configPath = Path.Combine(
+            Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData),
+            "TeamsISO", "config.json");
+        var configStore = new ConfigStore(configPath, loggerFactory.CreateLogger<ConfigStore>());
+
+        var probe = new NdiRuntimeProbe(interop, NdiVersion.ExpectedRuntimeVersionPrefix);
+        var scaler = new ManagedNearestNeighborFrameScaler();
+
+        // Pipeline factory: wires up real NDI receiver/processor/sender against the production interop.
+        IsoPipeline PipelineFactory(IsoPipelineConfig config)
+        {
+            var clock = new PeriodicTimerFrameClock(config.Settings.FramerateHz);
+            return new IsoPipeline(
+                config, interop, scaler, clock,
+                ExponentialBackoff.Default,
+                (delay, ct) => Task.Delay(delay, ct),
+                loggerFactory);
+        }
+
+        await using var controller = new IsoController(
+            interop, PipelineFactory, configStore, probe, loggerFactory);
+
+        // Wire up event printing
+        var sub1 = controller.Participants
+            .DistinctUntilChanged()
+            .Subscribe(plist =>
+            {
+                logger.LogInformation("Participants ({Count}):", plist.Count);
+                foreach (var p in plist)
+                    logger.LogInformation("  - {Name}  source={Source}", p.DisplayName, p.CurrentSource?.FullName ?? "<none>");
+            });
+        var sub2 = controller.Alerts.Subscribe(a => logger.LogWarning("ALERT: {Message}", a.Message));
+
+        using var cts = new CancellationTokenSource();
+        Console.CancelKeyPress += (_, e) => { e.Cancel = true; cts.Cancel(); };
+
+        await controller.StartAsync(cts.Token);
+        logger.LogInformation("Engine started. Default framerate: {Fps:F2} fps. Press Ctrl+C or 'q' Enter to quit.",
+            controller.GlobalSettings.FramerateHz);
+
+        if (enableAll)
+        {
+            // Auto-enable any participant we see, until cancellation.
+            controller.Participants.Subscribe(async plist =>
+            {
+                foreach (var p in plist.Where(p => p.CurrentSource is not null))
+                {
+                    try { await controller.EnableIsoAsync(p.Id, customName: null, cts.Token); }
+                    catch (Exception ex) { logger.LogWarning(ex, "Could not enable ISO for {Name}.", p.DisplayName); }
+                }
+            });
+        }
+
+        // Read until 'q' or cancellation.
+        var input = Task.Run(() =>
+        {
+            while (!cts.IsCancellationRequested)
+            {
+                var line = Console.ReadLine();
+                if (line is null) return;
+                if (line.Trim().Equals("q", StringComparison.OrdinalIgnoreCase))
+                {
+                    cts.Cancel();
+                    return;
+                }
+            }
+        });
+
+        try { await Task.Delay(Timeout.Infinite, cts.Token); }
+        catch (OperationCanceledException) { /* expected on quit */ }
+
+        sub1.Dispose();
+        sub2.Dispose();
+        interop.Dispose();
+        logger.LogInformation("Engine stopped.");
+        return 0;
+    }
+}
diff --git a/src/TeamsISO.Console/TeamsISO.Console.csproj b/src/TeamsISO.Console/TeamsISO.Console.csproj
new file mode 100644
index 0000000..39fca0f
--- /dev/null
+++ b/src/TeamsISO.Console/TeamsISO.Console.csproj
@@ -0,0 +1,15 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <ItemGroup>
+    <ProjectReference Include="..\TeamsISO.Engine\TeamsISO.Engine.csproj" />
+    <ProjectReference Include="..\TeamsISO.Engine.NdiInterop\TeamsISO.Engine.NdiInterop.csproj" />
+  </ItemGroup>
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>