diff --git a/package-lock.json b/package-lock.json
index e4839a4..bb003ff 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -257,6 +257,13 @@
         "@types/webgl-ext": "0.0.30",
         "@types/webgl2": "0.0.4",
         "seedrandom": "2.4.3"
+      },
+      "dependencies": {
+        "@types/webgl2": {
+          "version": "0.0.4",
+          "resolved": "https://registry.npmjs.org/@types/webgl2/-/webgl2-0.0.4.tgz",
+          "integrity": "sha512-PACt1xdErJbMUOUweSrbVM7gSIYm1vTncW2hF6Os/EeWi6TXYAYMPp+8v6rzHmypE5gHrxaxZNXgMkJVIdZpHw=="
+        }
       }
     },
     "@tensorflow/tfjs-converter": {
@@ -277,6 +284,11 @@
         "seedrandom": "2.4.3"
       },
       "dependencies": {
+        "@types/webgl2": {
+          "version": "0.0.4",
+          "resolved": "https://registry.npmjs.org/@types/webgl2/-/webgl2-0.0.4.tgz",
+          "integrity": "sha512-PACt1xdErJbMUOUweSrbVM7gSIYm1vTncW2hF6Os/EeWi6TXYAYMPp+8v6rzHmypE5gHrxaxZNXgMkJVIdZpHw=="
+        },
         "node-fetch": {
           "version": "2.1.2",
           "resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-2.1.2.tgz",
@@ -439,9 +451,10 @@
       "integrity": "sha512-LKVgNmBxN0BbljJrVUwkxwRYqzsAEPcZOe6S2T6ZaBDIrFp0qu4FNlpc5sM1tGbXUYFgdVQIoeLk1Y1UoblyEg=="
     },
     "@types/webgl2": {
-      "version": "0.0.4",
-      "resolved": "https://registry.npmjs.org/@types/webgl2/-/webgl2-0.0.4.tgz",
-      "integrity": "sha512-PACt1xdErJbMUOUweSrbVM7gSIYm1vTncW2hF6Os/EeWi6TXYAYMPp+8v6rzHmypE5gHrxaxZNXgMkJVIdZpHw=="
+      "version": "0.0.5",
+      "resolved": "https://registry.npmjs.org/@types/webgl2/-/webgl2-0.0.5.tgz",
+      "integrity": "sha512-oGaKsBbxQOY5+aJFV3KECDhGaXt+yZJt2y/OZsnQGLRkH6Fvr7rv4pCt3SRH1somIHfej/c4u7NSpCyd9x+1Ow==",
+      "dev": true
     },
     "@webassemblyjs/ast": {
       "version": "1.9.0",
diff --git a/package.json b/package.json
index ef01487..abb64cc 100644
--- a/package.json
+++ b/package.json
@@ -5,7 +5,8 @@
   "main": "index.js",
   "scripts": {
     "build": "rimraf dist && webpack",
-    "start": "rimraf dist && webpack-dev-server --open -d"
+    "start": "rimraf dist && webpack-dev-server --open -d",
+    "dev": "rimraf server.js && tsc server.ts && node server.js"
   },
   "keywords": [],
   "author": "",
@@ -25,6 +26,7 @@
     "webpack-dev-server": "^3.11.0"
   },
   "devDependencies": {
+    "@types/webgl2": "0.0.5",
     "ts-loader": "^8.0.3",
     "typescript": "^4.0.2"
   }