diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..c03a7cf
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,88 @@
+name: CI
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+
+jobs:
+  backend-tests:
+    runs-on: ubuntu-latest
+    if: github.event_name != 'pull_request' || github.event.pull_request.draft == false
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Cache NuGet
+        uses: actions/cache@v4
+        with:
+          path: ~/.nuget/packages
+          key: nuget-${{ runner.os }}-${{ hashFiles('**/*.csproj') }}
+          restore-keys: |
+            nuget-${{ runner.os }}-
+
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: 10.0.x
+
+      - name: Restore and test
+        run: dotnet test backend/Cauldron.Api/Cauldron.Api.sln
+
+  frontend-unit:
+    runs-on: ubuntu-latest
+    if: github.event_name != 'pull_request' || github.event.pull_request.draft == false
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Bun
+        uses: oven-sh/setup-bun@v1
+
+      - name: Cache Bun
+        uses: actions/cache@v4
+        with:
+          path: ~/.bun/install/cache
+          key: bun-${{ runner.os }}-${{ hashFiles('frontend/cauldron/bun.lock') }}
+          restore-keys: |
+            bun-${{ runner.os }}-
+
+      - name: Install dependencies
+        working-directory: frontend/cauldron
+        run: bun install
+
+      - name: Run unit tests
+        working-directory: frontend/cauldron
+        run: bun test:unit
+
+  frontend-e2e:
+    runs-on: ubuntu-latest
+    needs: frontend-unit
+    if: github.event_name != 'pull_request' || github.event.pull_request.draft == false
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Bun
+        uses: oven-sh/setup-bun@v1
+
+      - name: Cache Bun
+        uses: actions/cache@v4
+        with:
+          path: ~/.bun/install/cache
+          key: bun-${{ runner.os }}-${{ hashFiles('frontend/cauldron/bun.lock') }}
+          restore-keys: |
+            bun-${{ runner.os }}-
+
+      - name: Install dependencies
+        working-directory: frontend/cauldron
+        run: bun install
+
+      - name: Install Playwright browsers
+        working-directory: frontend/cauldron
+        run: npx playwright install --with-deps
+
+      - name: Run e2e tests
+        working-directory: frontend/cauldron
+        run: bun test:e2e
diff --git a/backend/Cauldron.Api.Tests/LeftoverEndpointsTests.cs b/backend/Cauldron.Api.Tests/LeftoverEndpointsTests.cs
index 046a0c5..4626fbd 100644
--- a/backend/Cauldron.Api.Tests/LeftoverEndpointsTests.cs
+++ b/backend/Cauldron.Api.Tests/LeftoverEndpointsTests.cs
@@ -1,12 +1,35 @@
 using System.Net;
 using System.Net.Http.Json;
 using Cauldron.Api.Contracts.Leftovers;
+using Cauldron.Api.Data;
+using Microsoft.Extensions.DependencyInjection;
 
 namespace Cauldron.Api.Tests;
 
-public class LeftoverEndpointsTests(TestApplicationFactory factory) : IClassFixture<TestApplicationFactory>
+public class LeftoverEndpointsTests : IClassFixture<TestApplicationFactory>, IAsyncLifetime
 {
-    private readonly HttpClient _client = factory.CreateClient();
+    private readonly HttpClient _client;
+    private readonly IServiceScope _scope;
+    private readonly CauldronDbContext _db;
+
+    public LeftoverEndpointsTests(TestApplicationFactory factory)
+    {
+        _client = factory.CreateClient();
+        _scope = factory.Services.CreateScope();
+        _db = _scope.ServiceProvider.GetRequiredService<CauldronDbContext>();
+    }
+
+    public async Task InitializeAsync()
+    {
+        _db.Leftovers.RemoveRange(_db.Leftovers);
+        await _db.SaveChangesAsync();
+    }
+
+    public Task DisposeAsync()
+    {
+        _scope.Dispose();
+        return Task.CompletedTask;
+    }
 
     [Fact]
     public async Task CreateLeftover_PersistsAndCanBeFetched()
diff --git a/frontend/cauldron/playwright.config.ts b/frontend/cauldron/playwright.config.ts
index 5ece956..449bed3 100644
--- a/frontend/cauldron/playwright.config.ts
+++ b/frontend/cauldron/playwright.config.ts
@@ -99,11 +99,11 @@ export default defineConfig({
   /* Run your local dev server before starting the tests */
   webServer: {
     /**
-     * Use the dev server by default for faster feedback loop.
-     * Use the preview server on CI for more realistic testing.
-     * Playwright will re-use the local server if there is already a dev-server running.
+     * Use dev server locally; on CI build then run preview so assets are built.
      */
-    command: process.env.CI ? 'npm run preview' : 'npm run dev',
+    command: process.env.CI
+      ? 'bun run build && bun run preview -- --host 0.0.0.0 --port 4173'
+      : 'bun dev -- --host 0.0.0.0 --port 5173',
     port: process.env.CI ? 4173 : 5173,
     reuseExistingServer: !process.env.CI,
   },