diff --git a/package-lock.json b/package-lock.json
index 5ab7469..a0f9e71 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -8,6 +8,12 @@
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       "license": "ISC",
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@@ -310,6 +328,11 @@
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@@ -328,6 +351,26 @@
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@@ -487,6 +584,32 @@
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@@ -502,6 +625,14 @@
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@@ -542,6 +673,11 @@
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@@ -585,6 +721,14 @@
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@@ -617,6 +761,51 @@
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+      "resolved": "https://registry.npmjs.org/express/-/express-4.17.1.tgz",
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@@ -669,6 +858,23 @@
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@@ -682,6 +888,22 @@
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@@ -759,6 +981,21 @@
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@@ -796,6 +1044,11 @@
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+          "integrity": "sha512-tgp+dl5cGk28utYktBsrFqA7HKgrhgPsg6Z/EfhWI4gl1Hwq8B/GmY/0oXZ6nF8hDVesS/FpnYaD/kOWhYQvyg=="
+        }
+      }
+    },
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       "version": "6.0.0",
       "resolved": "https://registry.npmjs.org/serialize-javascript/-/serialize-javascript-6.0.0.tgz",
@@ -2987,6 +3823,22 @@
         "randombytes": "^2.1.0"
       }
     },
+    "serve-static": {
+      "version": "1.14.1",
+      "resolved": "https://registry.npmjs.org/serve-static/-/serve-static-1.14.1.tgz",
+      "integrity": "sha512-JMrvUwE54emCYWlTI+hGrGv5I8dEwmco/00EvkzIIsR7MqrHonbD9pO2MOfFnpFntl7ecpZs+3mW+XbQZu9QCg==",
+      "requires": {
+        "encodeurl": "~1.0.2",
+        "escape-html": "~1.0.3",
+        "parseurl": "~1.3.3",
+        "send": "0.17.1"
+      }
+    },
+    "setprototypeof": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/setprototypeof/-/setprototypeof-1.1.1.tgz",
+      "integrity": "sha512-JvdAWfbXeIGaZ9cILp38HntZSFSo3mWg6xGcJJsd+d4aRMOqauag1C63dJfDw7OaMYwEbHMOxEZ1lqVRYP2OAw=="
+    },
     "shallow-clone": {
       "version": "3.0.1",
       "resolved": "https://registry.npmjs.org/shallow-clone/-/shallow-clone-3.0.1.tgz",
@@ -3045,6 +3897,11 @@
         "source-map": "^0.6.0"
       }
     },
+    "statuses": {
+      "version": "1.5.0",
+      "resolved": "https://registry.npmjs.org/statuses/-/statuses-1.5.0.tgz",
+      "integrity": "sha1-Fhx9rBd2Wf2YEfQ3cfqZOBR4Yow="
+    },
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       "resolved": "https://registry.npmjs.org/strip-final-newline/-/strip-final-newline-2.0.0.tgz",
@@ -3115,6 +3972,25 @@
         "is-number": "^7.0.0"
       }
     },
+    "toidentifier": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/toidentifier/-/toidentifier-1.0.0.tgz",
+      "integrity": "sha512-yaOH/Pk/VEhBWWTlhI+qXxDFXlejDGcQipMlyxda9nthulaxLZUNcUqFxokp0vcYnvteJln5FNQDRrxj3YcbVw=="
+    },
+    "type-is": {
+      "version": "1.6.18",
+      "resolved": "https://registry.npmjs.org/type-is/-/type-is-1.6.18.tgz",
+      "integrity": "sha512-TkRKr9sUTxEH8MdfuCSP7VizJyzRNMjj2J2do2Jr3Kym598JVdEksuzPQCnlFPW4ky9Q+iA+ma9BGm06XQBy8g==",
+      "requires": {
+        "media-typer": "0.3.0",
+        "mime-types": "~2.1.24"
+      }
+    },
+    "unpipe": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz",
+      "integrity": "sha1-sr9O6FFKrmFltIF4KdIbLvSZBOw="
+    },
     "uri-js": {
       "version": "4.4.1",
       "resolved": "https://registry.npmjs.org/uri-js/-/uri-js-4.4.1.tgz",
@@ -3135,18 +4011,36 @@
         "schema-utils": "^3.0.0"
       }
     },
+    "utf-8-validate": {
+      "version": "5.0.5",
+      "resolved": "https://registry.npmjs.org/utf-8-validate/-/utf-8-validate-5.0.5.tgz",
+      "integrity": "sha512-+pnxRYsS/axEpkrrEpzYfNZGXp0IjC/9RIxwM5gntY4Koi8SHmUGSfxfWqxZdRxrtaoVstuOzUp/rbs3JSPELQ==",
+      "requires": {
+        "node-gyp-build": "^4.2.0"
+      }
+    },
     "util-deprecate": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
       "integrity": "sha1-RQ1Nyfpw3nMnYvvS1KKJgUGaDM8=",
       "dev": true
     },
+    "utils-merge": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/utils-merge/-/utils-merge-1.0.1.tgz",
+      "integrity": "sha1-n5VxD1CiZ5R7LMwSR0HBAoQn5xM="
+    },
     "v8-compile-cache": {
       "version": "2.3.0",
       "resolved": "https://registry.npmjs.org/v8-compile-cache/-/v8-compile-cache-2.3.0.tgz",
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       "dev": true
     },
+    "vary": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/vary/-/vary-1.1.2.tgz",
+      "integrity": "sha1-IpnwLG3tMNSllhsLn3RSShj2NPw="
+    },
     "watchpack": {
       "version": "2.2.0",
       "resolved": "https://registry.npmjs.org/watchpack/-/watchpack-2.2.0.tgz",
@@ -3252,6 +4146,12 @@
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       "dev": true
     },
+    "ws": {
+      "version": "8.0.0",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-8.0.0.tgz",
+      "integrity": "sha512-6AcSIXpBlS0QvCVKk+3cWnWElLsA6SzC0lkQ43ciEglgXJXiCWK3/CGFEJ+Ybgp006CMibamAsqOlxE9s4AvYA==",
+      "requires": {}
+    },
     "yallist": {
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/yallist/-/yallist-4.0.0.tgz",
diff --git a/package.json b/package.json
index dde892c..1ec12bd 100644
--- a/package.json
+++ b/package.json
@@ -31,5 +31,11 @@
     "url-loader": "^4.1.1",
     "webpack": "^5.45.1",
     "webpack-cli": "^4.7.2"
+  },
+  "dependencies": {
+    "bufferutil": "^4.0.3",
+    "express": "^4.17.1",
+    "utf-8-validate": "^5.0.5",
+    "ws": "^8.0.0"
   }
 }