diff --git a/apps/desktop/src/app/DesktopObservability.test.ts b/apps/desktop/src/app/DesktopObservability.test.ts
index 9438175f602..fa20cd5d10a 100644
--- a/apps/desktop/src/app/DesktopObservability.test.ts
+++ b/apps/desktop/src/app/DesktopObservability.test.ts
@@ -1,7 +1,10 @@
 import * as NodeHttpClient from "@effect/platform-node/NodeHttpClient";
 import * as NodeServices from "@effect/platform-node/NodeServices";
 import { assert, describe, it } from "@effect/vitest";
+import * as Cause from "effect/Cause";
+import * as Console from "effect/Console";
 import * as Effect from "effect/Effect";
+import * as Exit from "effect/Exit";
 import * as FileSystem from "effect/FileSystem";
 import * as Layer from "effect/Layer";
 import * as Schema from "effect/Schema";
@@ -36,40 +39,65 @@ const TraceRecordLine = Schema.Struct({
 
 const decodeTraceRecordLine = Schema.decodeUnknownSync(Schema.fromJsonString(TraceRecordLine));
 
-const environmentInput = (baseDir: string) =>
+const consoleWithLog = (log: Console.Console["log"]): Console.Console =>
+  new Proxy(globalThis.console, {
+    get(target, property, receiver) {
+      if (property === "log") return log;
+      const value = Reflect.get(target, property, receiver) as unknown;
+      return typeof value === "function" ? value.bind(target) : value;
+    },
+  }) as Console.Console;
+
+const environmentInput = (
+  baseDir: string,
+  options: { readonly development?: boolean; readonly platform?: NodeJS.Platform } = {},
+) =>
   ({
     dirname: "/repo/apps/desktop/dist-electron",
     homeDirectory: baseDir,
-    platform: "darwin",
+    platform: options.platform ?? "darwin",
     processArch: "arm64",
     appVersion: "1.2.3",
     appPath: "/repo",
-    isPackaged: false,
+    isPackaged: options.development === false,
     resourcesPath: "/repo/resources",
     runningUnderArm64Translation: false,
   }) satisfies DesktopEnvironment.MakeDesktopEnvironmentInput;
 
-const makeEnvironmentLayer = (baseDir: string) =>
-  DesktopEnvironment.layer(environmentInput(baseDir)).pipe(
+const makeEnvironmentLayer = (
+  baseDir: string,
+  options: { readonly development?: boolean; readonly platform?: NodeJS.Platform } = {},
+) =>
+  DesktopEnvironment.layer(environmentInput(baseDir, options)).pipe(
     Layer.provide(
       Layer.mergeAll(
         NodeServices.layer,
         DesktopConfig.layerTest({
           T3CODE_HOME: baseDir,
-          VITE_DEV_SERVER_URL: "http://127.0.0.1:5733",
+          ...(options.development === false
+            ? {}
+            : { VITE_DEV_SERVER_URL: "http://127.0.0.1:5733" }),
         }),
       ),
     ),
   );
 
 describe("DesktopObservability", () => {
-  it.effect("persists desktop Effect logs as span events in desktop.trace.ndjson", () =>
+  it.effect("keeps the packaged Windows console logger and tolerates a broken pipe", () =>
     Effect.gen(function* () {
       const fileSystem = yield* FileSystem.FileSystem;
       const baseDir = yield* fileSystem.makeTempDirectoryScoped({
         prefix: "t3-desktop-observability-test-",
       });
-      const environmentLayer = makeEnvironmentLayer(baseDir);
+      const environmentLayer = makeEnvironmentLayer(baseDir, {
+        development: false,
+        platform: "win32",
+      });
+      let consoleLogCalls = 0;
+      const throwingConsole = consoleWithLog(() => {
+        consoleLogCalls += 1;
+        throw Object.assign(new Error("EPIPE: broken pipe, write"), { code: "EPIPE" });
+      });
       const tracePath = yield* Effect.gen(function* () {
         const environment = yield* DesktopEnvironment.DesktopEnvironment;
         return environment.path.join(environment.logDir, "desktop.trace.ndjson");
@@ -86,9 +114,12 @@ describe("DesktopObservability", () => {
         }).pipe(
           Effect.withSpan("desktop-observability-test"),
           Effect.provide(DesktopObservability.layer.pipe(Layer.provideMerge(environmentLayer))),
+          Effect.provideService(Console.Console, throwingConsole),
         ),
       );
 
+      assert.equal(consoleLogCalls, 1);
+
       const records = (yield* fileSystem.readFileString(tracePath))
         .trim()
         .split("\n")
@@ -112,6 +143,40 @@ describe("DesktopObservability", () => {
     ),
   );
 
+  it.effect("does not hide unrelated packaged Windows console failures", () =>
+    Effect.gen(function* () {
+      const fileSystem = yield* FileSystem.FileSystem;
+      const baseDir = yield* fileSystem.makeTempDirectoryScoped({
+        prefix: "t3-desktop-observability-console-error-test-",
+      });
+      const environmentLayer = makeEnvironmentLayer(baseDir, {
+        development: false,
+        platform: "win32",
+      });
+      const unexpectedError = Object.assign(new Error("unexpected console failure"), {
+        code: "EINVAL",
+      });
+      const throwingConsole = consoleWithLog(() => {
+        throw unexpectedError;
+      });
+
+      const exit = yield* Effect.exit(
+        Effect.scoped(
+          Effect.logInfo("desktop console failure").pipe(
+            Effect.provide(DesktopObservability.layer.pipe(Layer.provideMerge(environmentLayer))),
+            Effect.provideService(Console.Console, throwingConsole),
+          ),
+        ),
+      );
+
+      assert(Exit.isFailure(exit));
+      assert.equal(Cause.squash(exit.cause), unexpectedError);
+    }).pipe(
+      Effect.scoped,
+      Effect.provide(Layer.mergeAll(NodeServices.layer, NodeHttpClient.layerUndici)),
+    ),
+  );
+
   it.effect("persists backend child output as structured JSON records in development", () =>
     Effect.gen(function* () {
       const fileSystem = yield* FileSystem.FileSystem;
diff --git a/apps/desktop/src/app/DesktopObservability.ts b/apps/desktop/src/app/DesktopObservability.ts
index 42451e45ded..a7f0ad59ebf 100644
--- a/apps/desktop/src/app/DesktopObservability.ts
+++ b/apps/desktop/src/app/DesktopObservability.ts
@@ -438,9 +438,40 @@ const backendOutputLogFactoryLayer = Layer.effect(
   }),
 );
 
-const desktopLoggerLayer = Layer.mergeAll(
-  Logger.layer([Logger.consolePretty(), Logger.tracerLogger], { mergeWithExisting: false }),
-  Layer.succeed(References.MinimumLogLevel, "Info"),
+const isBrokenPipeError = (error: unknown): boolean =>
+  typeof error === "object" && error !== null && "code" in error && error.code === "EPIPE";
+
+const makeBrokenPipeSafeConsoleLogger = (): Logger.Logger<unknown, void> => {
+  const delegate = Logger.consolePretty();
+  let pipeBroken = false;
+
+  return Logger.make((options) => {
+    if (pipeBroken) return;
+
+    try {
+      delegate.log(options);
+    } catch (error) {
+      if (!isBrokenPipeError(error)) throw error;
+      pipeBroken = true;
+    }
+  });
+};
+
+const desktopLoggerLayer = Layer.unwrap(
+  Effect.gen(function* () {
+    const environment = yield* DesktopEnvironment.DesktopEnvironment;
+    // Packaged Windows launches can inherit a short-lived stdout pipe. Keep console logging active
+    // until that pipe closes, then disable only the unavailable sink while tracing continues.
+    const consoleLogger =
+      environment.platform === "win32" && !environment.isDevelopment
+        ? makeBrokenPipeSafeConsoleLogger()
+        : Logger.consolePretty();
+
+    return Layer.mergeAll(
+      Logger.layer([consoleLogger, Logger.tracerLogger], { mergeWithExisting: false }),
+      Layer.succeed(References.MinimumLogLevel, "Info"),
+    );
+  }),
 );
 
 const tracerLayer = Layer.unwrap(