diff --git a/.gitmodules b/.gitmodules
@@ -4,3 +4,12 @@
 [submodule "vendor/http_parser"]
 	path = vendor/http_parser
 	url = https://github.com/nodejs/http-parser
+[submodule "packages/emnapi"]
+	path = packages/emnapi
+	url = https://github.com/toyobayashi/emnapi.git
+[submodule "packages/napi-rs-ts"]
+	path = packages/napi-rs-ts
+	url = https://github.com/napi-rs/package-template.git
+[submodule "packages/node-addon-examples"]
+	path = packages/node-addon-examples
+	url = https://github.com/toyobayashi/node-addon-examples
diff --git a/generate/templates/templates/binding.gyp b/generate/templates/templates/binding.gyp
@@ -76,6 +76,22 @@
       ],
 
       "conditions": [
+        [
+          "OS=='emscripten'", {
+            "product_extension": "js",
+            "include_dirs": [
+              "<!(node -p \"require('emnapi').include_dir || ''\")"
+            ]
+          }
+        ],
+        [
+          "OS=='wasi'", {
+            "product_extension": "wasm",
+            "include_dirs": [
+              "<!(node -p \"require('emnapi').include_dir || ''\")"
+            ]
+          }
+        ],
         [
           "coverage==1", {
             "cflags": [

diff --git a/package-lock.json b/package-lock.json
diff --git a/package.json b/package.json
@@ -38,7 +38,10 @@
     "node": ">= 22"
   },
   "dependencies": {
+    "@emnapi/core": "file:packages/emnapi/packages/core",
+    "@emnapi/runtime": "file:packages/emnapi/packages/runtime",
     "@mapbox/node-pre-gyp": "^2.0.0",
+    "emnapi": "file:packages/emnapi/packages/emnapi",
     "fs-extra": "^7.0.0",
     "got": "^14.4.7",
     "json5": "^2.1.0",

diff --git a/packages/emnapi b/packages/emnapi
diff --git a/packages/napi-rs-ts b/packages/napi-rs-ts
diff --git a/packages/node-addon-examples b/packages/node-addon-examples