diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index fd23eba..304e81b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -21,21 +21,12 @@ jobs:
       - run: bun run check
       - run: bun run test
 
-  e2e:
-    runs-on: ubuntu-latest
-    timeout-minutes: 30
-    steps:
-      - uses: actions/checkout@v4
-      - uses: oven-sh/setup-bun@v2
-        with:
-          bun-version: 'latest'
-      - run: bun install
-      - run: bun run build
-      - run: npx playwright install --with-deps chromium
-      - run: npx playwright test
-      - uses: actions/upload-artifact@v4
-        if: always()
-        with:
-          name: e2e-screenshots
-          path: e2e-results/
-          retention-days: 30
+  # E2E tests are NOT run in CI — they require GPU/Vulkan to run transformers.js
+  # models in WebGPU mode within a reasonable time budget, and GitHub Actions
+  # Pro does not offer GPU-enabled runners.
+  #
+  # Run E2E tests locally before pushing:
+  #   bun run test:e2e:local    (builds a Docker image with Mesa Vulkan + Playwright)
+  #
+  # See e2e/Dockerfile and e2e/run-local.sh for details.
+  # The pre-push git hook runs this automatically.
diff --git a/.husky/pre-push b/.husky/pre-push
new file mode 100755
index 0000000..053b1a4
--- /dev/null
+++ b/.husky/pre-push
@@ -0,0 +1,16 @@
+#!/usr/bin/env sh
+. "$(dirname -- "$0")/_/husky.sh"
+
+# Run Playwright E2E tests before pushing.
+# Requires Docker (see e2e/run-local.sh).
+#
+# Skip when Docker is unavailable or for a quick push:
+#   git push --no-verify
+
+if ! command -v docker > /dev/null 2>&1; then
+  echo "⚠ Docker not found — skipping E2E tests. Install Docker to enable local E2E."
+  exit 0
+fi
+
+echo "▶ Running E2E tests before push (skip with: git push --no-verify)..."
+bun run test:e2e:local
diff --git a/e2e/Dockerfile b/e2e/Dockerfile
new file mode 100644
index 0000000..0d237aa
--- /dev/null
+++ b/e2e/Dockerfile
@@ -0,0 +1,32 @@
+# syntax=docker/dockerfile:1
+#
+# E2E local test image for Q².
+#
+# Built on the official Playwright Ubuntu Jammy image — Chromium and all of
+# its system-level dependencies are pre-installed and version-matched.
+# Mesa Vulkan drivers are layered on top so that Chromium can use WebGPU via:
+#   • Intel ANV  (Intel integrated / discrete GPU)
+#   • AMD RADV   (AMD GPU via /dev/dri passthrough)
+#   • lavapipe   (Mesa software Vulkan — unconditional fallback, no GPU needed)
+#
+# Build:  docker build -t q2-e2e -f e2e/Dockerfile .
+# Run:    bun run test:e2e:local   (or directly: ./e2e/run-local.sh)
+#
+# Update this tag when you bump @playwright/test in package.json.
+# Available tags: https://mcr.microsoft.com/v2/playwright/tags/list
+FROM mcr.microsoft.com/playwright:v1.50.1-jammy
+
+# ── Vulkan support ────────────────────────────────────────────────────────
+# mesa-vulkan-drivers installs Intel ANV, AMD RADV, and lavapipe in one shot.
+# libvulkan1 is the Vulkan loader (required by both drivers and Chromium).
+RUN apt-get update && apt-get install -y --no-install-recommends \
+        libvulkan1 \
+        mesa-vulkan-drivers \
+    && rm -rf /var/lib/apt/lists/*
+
+# ── Bun ───────────────────────────────────────────────────────────────────
+# Bun is the project's build tool and package manager.
+RUN curl -fsSL https://bun.sh/install | bash
+ENV PATH="/root/.bun/bin:$PATH"
+
+WORKDIR /app
diff --git a/e2e/chat.spec.ts b/e2e/chat.spec.ts
index b141c95..7e8d918 100644
--- a/e2e/chat.spec.ts
+++ b/e2e/chat.spec.ts
@@ -13,6 +13,7 @@ import { test, expect } from '@playwright/test';
 test.setTimeout(480_000);
 
 const MODEL_ID = process.env.E2E_MODEL ?? 'onnx-community/Qwen3.5-0.8B-ONNX';
+const MODEL_DTYPE = process.env.E2E_DTYPE ?? 'q4';
 
 test.describe('Real chat interaction', () => {
   test('sends a message and receives a streamed response', async ({ page }, testInfo) => {
@@ -24,7 +25,7 @@ test.describe('Real chat interaction', () => {
     // ── Step 1: Load the model ─────────────────────────────────────────────
     await page.click('#tab-settings');
     await page.fill('#model-custom-id', MODEL_ID);
-    await page.selectOption('#model-dtype', 'q4');
+    await page.selectOption('#model-dtype', MODEL_DTYPE);
     await page.click('#load-btn');
 
     // Wait for model to finish loading.
diff --git a/e2e/model-loading.spec.ts b/e2e/model-loading.spec.ts
index 86a73da..4b3b499 100644
--- a/e2e/model-loading.spec.ts
+++ b/e2e/model-loading.spec.ts
@@ -7,7 +7,7 @@
  * ONNX Runtime WASM session, and the UI transitions to "ready".
  *
  * The default model is onnx-community/Qwen3.5-0.8B-ONNX (q4).  Override with
- * the E2E_MODEL environment variable for faster CI runs.
+ * the E2E_MODEL and E2E_DTYPE environment variables for faster CI runs.
  */
 import { test, expect } from '@playwright/test';
 
@@ -15,6 +15,7 @@ import { test, expect } from '@playwright/test';
 test.setTimeout(300_000);
 
 const MODEL_ID = process.env.E2E_MODEL ?? 'onnx-community/Qwen3.5-0.8B-ONNX';
+const MODEL_DTYPE = process.env.E2E_DTYPE ?? 'q4';
 
 test.describe('Real model loading via transformers.js', () => {
   test('loads a model and transitions to ready state', async ({ page }, testInfo) => {
@@ -28,8 +29,8 @@ test.describe('Real model loading via transformers.js', () => {
     await page.click('#tab-settings');
     await page.fill('#model-custom-id', MODEL_ID);
 
-    // Ensure q4 dtype is selected (smallest download).
-    await page.selectOption('#model-dtype', 'q4');
+    // Ensure the configured dtype is selected (q4 is the smallest download by default).
+    await page.selectOption('#model-dtype', MODEL_DTYPE);
 
     await page.screenshot({ path: testInfo.outputPath('model-before-load.png'), fullPage: true });
 
diff --git a/e2e/run-local.sh b/e2e/run-local.sh
new file mode 100755
index 0000000..b07242c
--- /dev/null
+++ b/e2e/run-local.sh
@@ -0,0 +1,63 @@
+#!/usr/bin/env bash
+# Run Playwright E2E tests locally inside a Docker container.
+#
+# • Builds the q2-e2e Docker image on first run (one-time ~3 min).
+# • Caches node_modules in a named Docker volume so subsequent bun installs
+#   are near-instant.
+# • Passes /dev/dri to the container for Intel/AMD GPU acceleration when
+#   available; falls back to Mesa lavapipe (software Vulkan) otherwise.
+# • The pre-installed Playwright browsers in the image are reused — no
+#   200 MB chromium download on each run.
+#
+# Usage:
+#   ./e2e/run-local.sh
+#   E2E_MODEL=onnx-community/SmolLM2-135M-Instruct E2E_DTYPE=q4 ./e2e/run-local.sh
+#
+# Rebuild the image after updating the Playwright version in package.json:
+#   docker build -t q2-e2e -f e2e/Dockerfile .
+
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+REPO_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
+IMAGE="q2-e2e:local"
+NM_VOLUME="q2-e2e-node-modules"
+
+# ── Require Docker ────────────────────────────────────────────────────────
+if ! command -v docker > /dev/null 2>&1; then
+  echo "✖ Docker is not installed or not in PATH." >&2
+  echo "  Install Docker Desktop: https://docs.docker.com/get-docker/" >&2
+  exit 1
+fi
+
+# ── Build image if it does not exist yet ─────────────────────────────────
+if ! docker image inspect "$IMAGE" > /dev/null 2>&1; then
+  echo "▶ Building E2E Docker image (first-run setup — ~3 min)..."
+  docker build -t "$IMAGE" -f "$SCRIPT_DIR/Dockerfile" "$REPO_ROOT"
+fi
+
+# ── GPU passthrough ───────────────────────────────────────────────────────
+GPU_FLAGS=()
+GPU_AVAILABLE=""
+if [ -d /dev/dri ]; then
+  GPU_FLAGS+=(--device /dev/dri)
+  GPU_AVAILABLE="1"
+  echo "▶ /dev/dri found — Intel/AMD GPU passthrough enabled (WebGPU)."
+else
+  echo "▶ /dev/dri not found — using Mesa lavapipe (software Vulkan fallback)."
+fi
+
+# ── Run tests ─────────────────────────────────────────────────────────────
+echo "▶ Running E2E tests..."
+exec docker run --rm \
+  --ipc=host \
+  ${GPU_FLAGS[@]+"${GPU_FLAGS[@]}"} \
+  -v "$REPO_ROOT:/app" \
+  -v "$NM_VOLUME:/app/node_modules" \
+  -w /app \
+  -e CI=true \
+  -e E2E_GPU_AVAILABLE="${E2E_GPU_AVAILABLE:-$GPU_AVAILABLE}" \
+  -e E2E_MODEL="${E2E_MODEL:-}" \
+  -e E2E_DTYPE="${E2E_DTYPE:-}" \
+  "$IMAGE" \
+  sh -c "PLAYWRIGHT_SKIP_BROWSER_DOWNLOAD=1 bun install --frozen-lockfile && bun run build && npx playwright test"
diff --git a/package.json b/package.json
index 9744c5c..d6bf492 100644
--- a/package.json
+++ b/package.json
@@ -25,6 +25,7 @@
     "test": "vitest run --coverage",
     "pretest:e2e": "bun run build",
     "test:e2e": "playwright test",
+    "test:e2e:local": "bash e2e/run-local.sh",
     "test:browser": "vitest run --browser",
     "coverage": "vitest run --coverage",
     "deploy": "bun run build"
diff --git a/playwright.config.ts b/playwright.config.ts
index f28465e..d740f9c 100644
--- a/playwright.config.ts
+++ b/playwright.config.ts
@@ -6,6 +6,30 @@ import { defineConfig } from '@playwright/test';
  * Serves the built application via a lightweight static server and runs real
  * browser tests against it — no mocks, no fakes, no fake DOM.
  */
+
+/**
+ * Chromium launch args for WebGPU support.
+ *
+ * Local Docker runs (e2e/run-local.sh):
+ *   /dev/dri is passed to the container for Intel/AMD GPU access.  The run
+ *   script sets E2E_GPU_AVAILABLE=1 automatically when /dev/dri is present,
+ *   which drops --use-gl=swiftshader and lets Chromium use hardware Vulkan
+ *   (Intel ANV / AMD RADV).
+ *
+ * Without GPU (lavapipe fallback):
+ *   --use-gl=swiftshader forces the Mesa software Vulkan rasterizer.
+ *   WebGPU still works; inference falls back to WASM.
+ */
+const gpuArgs = [
+  '--enable-gpu',
+  '--ignore-gpu-blocklist',
+  '--enable-unsafe-webgpu',
+  '--disable-gpu-sandbox',
+  // Use SwiftShader (software GL) when no GPU is available.
+  // Dropped when E2E_GPU_AVAILABLE=1 (set by run-local.sh on /dev/dri systems).
+  ...( process.env.E2E_GPU_AVAILABLE ? [] : ['--use-gl=swiftshader'] ),
+];
+
 export default defineConfig({
   testDir: './e2e',
   outputDir: './e2e-results',
@@ -27,6 +51,12 @@ export default defineConfig({
     screenshot: 'on',
     trace: 'retain-on-failure',
     headless: true,
+    /* Enable WebGPU and hardware-acceleration hints.
+     * On systems with Intel/AMD GPU: hardware Vulkan via /dev/dri passthrough.
+     * Without GPU: Mesa lavapipe (software Vulkan) via SwiftShader flag. */
+    launchOptions: {
+      args: gpuArgs,
+    },
   },
 
   projects: [