diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 00000000..2bd77fdb
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,32 @@
+name: CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    
+    steps:
+      - uses: actions/checkout@v4
+      
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '22'
+          cache: 'npm'
+      
+      - name: Install dependencies
+        run: npm ci
+      
+      - name: Run typecheck
+        run: npm run typecheck
+      
+      - name: Run tests
+        run: npm test
+      
+      - name: Build
+        run: npm run build
diff --git a/landing/index.html b/landing/index.html
index 493265b8..64c9eda3 100644
--- a/landing/index.html
+++ b/landing/index.html
@@ -118,7 +118,7 @@ <h3>bug-fix</h3>
     </section>
 
     <!-- Why it works -->
-    <section class="section">
+    <section id="features" class="section">
       <h2>Why it works</h2>
       <div class="steps-grid">
         <div class="step-card">
@@ -180,7 +180,7 @@ <h3>Built on the Ralph loop</h3>
     </section>
 
     <!-- Quick example -->
-    <section class="section">
+    <section id="quickstart" class="section">
       <h2>Quick example</h2>
       <div class="code-block">
         <div class="code-header">
diff --git a/landing/style.css b/landing/style.css
index 9c4a15cb..b05be910 100644
--- a/landing/style.css
+++ b/landing/style.css
@@ -268,6 +268,14 @@ h2.problem-text {
   margin-top: 24px;
 }
 
+/* === Feature grid === */
+.feature-grid {
+  display: grid;
+  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
+  gap: 16px;
+  margin-top: 24px;
+}
+
 .step-card {
   background: var(--bg-card);
   border: 1px solid var(--border);
diff --git a/package.json b/package.json
index c3af3fbf..b1d22fd0 100644
--- a/package.json
+++ b/package.json
@@ -11,7 +11,9 @@
   },
   "scripts": {
     "build": "tsc -p tsconfig.json && cp src/server/index.html dist/server/index.html && chmod +x dist/cli/cli.js && node scripts/inject-version.js",
-    "start": "node dist/cli/cli.js"
+    "start": "node dist/cli/cli.js",
+    "typecheck": "tsc --noEmit",
+    "test": "node --test"
   },
   "dependencies": {
     "json5": "^2.2.3",
diff --git a/src/cli/ant.test.ts b/src/cli/ant.test.ts
index 8b5fa416..db417ab3 100644
--- a/src/cli/ant.test.ts
+++ b/src/cli/ant.test.ts
@@ -1,6 +1,6 @@
 import { describe, it, beforeEach, afterEach } from "node:test";
 import assert from "node:assert/strict";
-import { printAnt } from "./ant.js";
+import { printAnt } from "../../dist/cli/ant.js";
 
 describe("printAnt", () => {
   let output: string;
diff --git a/src/installer/status.test.ts b/src/installer/status.test.ts
index 9b1eb39b..2feda997 100644
--- a/src/installer/status.test.ts
+++ b/src/installer/status.test.ts
@@ -1,9 +1,9 @@
 import { describe, it, afterEach } from "node:test";
 import assert from "node:assert/strict";
 import crypto from "node:crypto";
-import { getDb } from "../db.js";
-import { stopWorkflow } from "./status.js";
-import type { StopWorkflowResult } from "./status.js";
+import { getDb } from "../../dist/db.js";
+import { stopWorkflow } from "../../dist/installer/status.js";
+import type { StopWorkflowResult } from "../../dist/installer/status.js";
 
 // Helper to create a test run with steps
 function createTestRun(opts: {
diff --git a/src/installer/uninstall.test.ts b/src/installer/uninstall.test.ts
index 1be8760e..e385d67a 100644
--- a/src/installer/uninstall.test.ts
+++ b/src/installer/uninstall.test.ts
@@ -1,7 +1,7 @@
 import assert from "node:assert/strict";
 import path from "node:path";
 import { describe, it } from "node:test";
-import { selectAntfarmManagedAgents } from "./uninstall.js";
+import { selectAntfarmManagedAgents } from "../../dist/installer/uninstall.js";
 
 describe("selectAntfarmManagedAgents", () => {
   it("removes only workflow-prefixed agents for known Antfarm workflow ids", () => {
diff --git a/src/lib/logger.test.ts b/src/lib/logger.test.ts
index f3d8b312..7fc9e78f 100644
--- a/src/lib/logger.test.ts
+++ b/src/lib/logger.test.ts
@@ -1,7 +1,7 @@
 import { describe, it } from "node:test";
 import assert from "node:assert/strict";
-import { log, logger, formatEntry, readRecentLogs } from "./logger.js";
-import type { LogLevel } from "./logger.js";
+import { log, logger, formatEntry, readRecentLogs } from "../../dist/lib/logger.js";
+import type { LogLevel } from "../../dist/lib/logger.js";
 
 describe("logger", () => {
   describe("log()", () => {
diff --git a/tsconfig.json b/tsconfig.json
index 9658096d..9216b2b6 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -9,7 +9,10 @@
     "esModuleInterop": true,
     "forceConsistentCasingInFileNames": true,
     "skipLibCheck": true,
-    "types": ["node"]
+    "types": ["node"],
+    "declaration": true,
+    "declarationMap": true
   },
-  "include": ["src/**/*.ts"]
+  "include": ["src/**/*.ts"],
+  "exclude": ["src/**/*.test.ts"]
 }