diff --git a/.github/workflows/e2e.yml b/.github/workflows/e2e.yml
index a389e06458..6ac39c4222 100644
--- a/.github/workflows/e2e.yml
+++ b/.github/workflows/e2e.yml
@@ -31,6 +31,7 @@ jobs:
         os:
           - 'ubuntu-latest'
           - 'macos-latest'
+          - 'gemini-cli-windows-16-core'
         sandbox:
           - 'sandbox:none'
           - 'sandbox:docker'
@@ -40,6 +41,8 @@ jobs:
           # Docker tests are not supported on macOS or Windows
           - os: 'macos-latest'
             sandbox: 'sandbox:docker'
+          - os: 'gemini-cli-windows-16-core'
+            sandbox: 'sandbox:docker'
 
     steps:
       - name: 'Checkout (fork)'
@@ -57,7 +60,6 @@ jobs:
         uses: 'actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020' # ratchet:actions-node@v4
         with:
           node-version: '${{ matrix.node-version }}'
-          cache: 'npm'
 
       - name: 'Install dependencies'
         run: |-
@@ -78,5 +80,6 @@ jobs:
           KEEP_OUTPUT: 'true'
           SANDBOX: '${{ matrix.sandbox }}'
           VERBOSE: 'true'
+        shell: 'bash'
         run: |-
           npm run "test:integration:${SANDBOX}"
diff --git a/integration-tests/shell-service.test.ts b/integration-tests/shell-service.test.ts
index afa9c65d64..b4c1ada0c5 100644
--- a/integration-tests/shell-service.test.ts
+++ b/integration-tests/shell-service.test.ts
@@ -96,8 +96,8 @@ describe('ShellExecutionService programmatic integration tests', () => {
   );
 
   it('should abort a running process', async () => {
-    // A command that runs for a bit. 'sleep' on unix, 'timeout' on windows.
-    const command = process.platform === 'win32' ? 'timeout /t 20' : 'sleep 20';
+    // A command that runs for a bit.
+    const command = 'node -e "setTimeout(() => {}, 20000)"';
     const onOutputEvent = vi.fn();
     const abortController = new AbortController();
 
diff --git a/integration-tests/test-helper.ts b/integration-tests/test-helper.ts
index ceb7c1633e..a02b7a28c3 100644
--- a/integration-tests/test-helper.ts
+++ b/integration-tests/test-helper.ts
@@ -5,7 +5,6 @@
  */
 
 import { execSync, spawn } from 'node:child_process';
-import { parse } from 'shell-quote';
 import { mkdirSync, writeFileSync, readFileSync } from 'node:fs';
 import { join, dirname } from 'node:path';
 import { fileURLToPath } from 'node:url';
@@ -182,7 +181,7 @@ export class TestRig {
       | { prompt?: string; stdin?: string; stdinDoesNotEnd?: boolean },
     ...args: string[]
   ): Promise<string> {
-    let command = `node ${this.bundlePath} --yolo`;
+    const commandArgs = [this.bundlePath, '--yolo'];
     const execOptions: {
       cwd: string;
       encoding: 'utf-8';
@@ -193,25 +192,22 @@ export class TestRig {
     };
 
     if (typeof promptOrOptions === 'string') {
-      command += ` --prompt ${JSON.stringify(promptOrOptions)}`;
+      commandArgs.push('--prompt', promptOrOptions);
     } else if (
       typeof promptOrOptions === 'object' &&
       promptOrOptions !== null
     ) {
       if (promptOrOptions.prompt) {
-        command += ` --prompt ${JSON.stringify(promptOrOptions.prompt)}`;
+        commandArgs.push('--prompt', promptOrOptions.prompt);
       }
       if (promptOrOptions.stdin) {
         execOptions.input = promptOrOptions.stdin;
       }
     }
 
-    command += ` ${args.join(' ')}`;
+    commandArgs.push(...args);
 
-    const commandArgs = parse(command);
-    const node = commandArgs.shift() as string;
-
-    const child = spawn(node, commandArgs as string[], {
+    const child = spawn('node', commandArgs, {
       cwd: this.testDir!,
       stdio: 'pipe',
     });
diff --git a/package.json b/package.json
index 7f61c4d450..c73d8e5a71 100644
--- a/package.json
+++ b/package.json
@@ -36,9 +36,9 @@
     "test:scripts": "vitest run --config ./scripts/tests/vitest.config.ts",
     "test:e2e": "cross-env VERBOSE=true KEEP_OUTPUT=true npm run test:integration:sandbox:none",
     "test:integration:all": "npm run test:integration:sandbox:none && npm run test:integration:sandbox:docker && npm run test:integration:sandbox:podman",
-    "test:integration:sandbox:none": "GEMINI_SANDBOX=false vitest run --root ./integration-tests",
-    "test:integration:sandbox:docker": "GEMINI_SANDBOX=docker npm run build:sandbox && GEMINI_SANDBOX=docker vitest run --root ./integration-tests",
-    "test:integration:sandbox:podman": "GEMINI_SANDBOX=podman vitest run --root ./integration-tests",
+    "test:integration:sandbox:none": "cross-env GEMINI_SANDBOX=false vitest run --root ./integration-tests",
+    "test:integration:sandbox:docker": "cross-env GEMINI_SANDBOX=docker npm run build:sandbox && cross-env GEMINI_SANDBOX=docker vitest run --root ./integration-tests",
+    "test:integration:sandbox:podman": "cross-env GEMINI_SANDBOX=podman vitest run --root ./integration-tests",
     "lint": "eslint . --ext .ts,.tsx && eslint integration-tests",
     "lint:fix": "eslint . --fix && eslint integration-tests --fix",
     "lint:ci": "eslint . --ext .ts,.tsx --max-warnings 0 && eslint integration-tests --max-warnings 0",