diff --git a/.gitignore b/.gitignore
index a302f159..5c3a7154 100644
--- a/.gitignore
+++ b/.gitignore
@@ -90,3 +90,14 @@ __pycache__/
 .hypothesis/
 
 .ai-tool-config
+
+# TypeScript build artifacts (generated by tsc --build)
+*.tsbuildinfo
+/src/engine/*.js
+/src/engine/*.js.map
+/src/engine/*.d.ts
+/src/importer/*.js
+/src/importer/*.js.map
+/src/importer/*.d.ts
+/website/rspress.config.js
+/website/docs/**/*.js
diff --git a/scripts/pre-commit b/scripts/pre-commit
index a1cbe6bc..8a86ee39 100755
--- a/scripts/pre-commit
+++ b/scripts/pre-commit
@@ -77,18 +77,74 @@ else
         exit 1
     fi
 
-    echo -n "Checking TypeScript types... "
-    TSC_OUTPUT="$(mktemp)"
-    if yarn tsc > "$TSC_OUTPUT" 2>&1; then
-        echo -e "${GREEN}✓${NC}"
-        rm -f "$TSC_OUTPUT"
+    # Check if WASM modules are built (required for full type checking)
+    ENGINE_WASM="$REPO_ROOT/src/engine/core"
+    IMPORTER_WASM="$REPO_ROOT/src/importer/core"
+
+    if [ -d "$ENGINE_WASM" ] && [ -d "$IMPORTER_WASM" ]; then
+        # Full WASM build available - check all projects
+        echo -n "Checking TypeScript types (full)... "
+        TSC_OUTPUT="$(mktemp)"
+        if yarn tsc --build > "$TSC_OUTPUT" 2>&1; then
+            echo -e "${GREEN}✓${NC}"
+            rm -f "$TSC_OUTPUT"
+        else
+            echo -e "${RED}✗${NC}"
+            echo -e "${RED}TypeScript type checking failed:${NC}"
+            cat "$TSC_OUTPUT"
+            rm -f "$TSC_OUTPUT"
+            echo -e "${YELLOW}Run 'yarn tsc --build' to see errors${NC}"
+            exit 1
+        fi
     else
-        echo -e "${RED}✗${NC}"
-        echo -e "${RED}TypeScript type checking failed:${NC}"
-        cat "$TSC_OUTPUT"
+        # WASM not built - check projects that don't depend on WASM
+        echo -e "${YELLOW}WASM not built - checking independent projects only${NC}"
+        TSC_OUTPUT="$(mktemp)"
+        TSC_FAILED=0
+
+        echo -n "  Checking core... "
+        if yarn tsc --build src/core > "$TSC_OUTPUT" 2>&1; then
+            echo -e "${GREEN}✓${NC}"
+        else
+            echo -e "${RED}✗${NC}"
+            cat "$TSC_OUTPUT"
+            TSC_FAILED=1
+        fi
+
+        echo -n "  Checking website... "
+        if yarn tsc --build website > "$TSC_OUTPUT" 2>&1; then
+            echo -e "${GREEN}✓${NC}"
+        else
+            echo -e "${RED}✗${NC}"
+            cat "$TSC_OUTPUT"
+            TSC_FAILED=1
+        fi
+
+        echo -n "  Checking engine2... "
+        if yarn tsc --build src/engine2 > "$TSC_OUTPUT" 2>&1; then
+            echo -e "${GREEN}✓${NC}"
+        else
+            echo -e "${RED}✗${NC}"
+            cat "$TSC_OUTPUT"
+            TSC_FAILED=1
+        fi
+
+        echo -n "  Checking xmutil-js... "
+        if yarn tsc --build src/xmutil-js > "$TSC_OUTPUT" 2>&1; then
+            echo -e "${GREEN}✓${NC}"
+        else
+            echo -e "${RED}✗${NC}"
+            cat "$TSC_OUTPUT"
+            TSC_FAILED=1
+        fi
+
         rm -f "$TSC_OUTPUT"
-        echo -e "${YELLOW}Run 'yarn tsc' to see errors${NC}"
-        exit 1
+
+        if [ "$TSC_FAILED" -eq 1 ]; then
+            echo -e "${RED}TypeScript type checking failed${NC}"
+            echo -e "${YELLOW}Run 'yarn tsc --build' to see all errors${NC}"
+            exit 1
+        fi
     fi
 
     # Run engine2 tests if WASM is built
diff --git a/website/package.json b/website/package.json
index 86a4f328..0fc2e6d8 100644
--- a/website/package.json
+++ b/website/package.json
@@ -13,6 +13,7 @@
   },
   "devDependencies": {
     "@emotion/react": "^11.14.0",
+    "rsbuild-plugin-google-analytics": "^1.0.2",
     "@emotion/styled": "^11.14.0",
     "@mui/material": "^7.1.2",
     "@types/react": "^19.0.0",
diff --git a/website/rspress.config.ts b/website/rspress.config.ts
index 5757d8ce..75c20363 100644
--- a/website/rspress.config.ts
+++ b/website/rspress.config.ts
@@ -1,5 +1,6 @@
 import { defineConfig } from 'rspress/config';
 import path from 'path';
+import { pluginGoogleAnalytics } from 'rsbuild-plugin-google-analytics';
 
 const GithubBase = 'https://github.com/bpowers/simlin';
 
@@ -104,12 +105,12 @@ export default defineConfig({
   },
   // Output configuration
   outDir: 'build',
-  // Analytics
-  analytics: {
-    ga: {
-      measurementId: 'G-DYC89XS4YM',
-    },
-  },
+  // Builder plugins (includes Google Analytics)
+  builderPlugins: [
+    pluginGoogleAnalytics({
+      id: 'G-DYC89XS4YM',
+    }),
+  ],
   // Generate sitemap
   ssg: true,
 });
diff --git a/yarn.lock b/yarn.lock
index 609b4655..edee454f 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -12212,6 +12212,11 @@ router@^2.0.0, router@^2.2.0:
     parseurl "^1.3.3"
     path-to-regexp "^8.0.0"
 
+rsbuild-plugin-google-analytics@^1.0.2:
+  version "1.0.5"
+  resolved "https://registry.yarnpkg.com/rsbuild-plugin-google-analytics/-/rsbuild-plugin-google-analytics-1.0.5.tgz#dfd0e97a34fe467a3a9394f9b1d6b507045d6a84"
+  integrity sha512-1qSMjmH3HBNMIyrRjBFHQKmTdL86VNc42HjL3z25z4k4n+N7+cl9UvpD5ou3G6YAn1jNJ2GS2pia+PKNyaTzmg==
+
 rspack-plugin-virtual-module@0.1.13:
   version "0.1.13"
   resolved "https://registry.yarnpkg.com/rspack-plugin-virtual-module/-/rspack-plugin-virtual-module-0.1.13.tgz#2acb3e5bba6fff458fd3428322978e0a51bb3294"