diff --git a/backend/package-lock.json b/backend/package-lock.json
index 254a266..b4b7479 100644
--- a/backend/package-lock.json
+++ b/backend/package-lock.json
@@ -26,6 +26,7 @@
         "@types/sqlite3": "^3.1.11",
         "@typescript-eslint/eslint-plugin": "^7.1.1",
         "@typescript-eslint/parser": "^7.1.1",
+        "crossenv": "^0.0.2-security",
         "eslint": "^8.57.0",
         "node-polyfill-webpack-plugin": "^4.0.0",
         "prettier": "^3.2.5",
@@ -2034,6 +2035,12 @@
         "node": ">= 8"
       }
     },
+    "node_modules/crossenv": {
+      "version": "0.0.2-security",
+      "resolved": "https://registry.npmjs.org/crossenv/-/crossenv-0.0.2-security.tgz",
+      "integrity": "sha512-Zet/ldwzo70I+vUnjM9yHCWo2iqK/RM2s2VnZDNPE/fN062UXYXGqu9Hd7HlhNVhnYGclPcjNoySWhug5lctHw==",
+      "dev": true
+    },
     "node_modules/crypto-browserify": {
       "version": "3.12.0",
       "resolved": "https://registry.npmjs.org/crypto-browserify/-/crypto-browserify-3.12.0.tgz",
diff --git a/backend/package.json b/backend/package.json
index 4ac9d8f..3eb857d 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -19,6 +19,7 @@
     "@types/sqlite3": "^3.1.11",
     "@typescript-eslint/eslint-plugin": "^7.1.1",
     "@typescript-eslint/parser": "^7.1.1",
+    "crossenv": "^0.0.2-security",
     "eslint": "^8.57.0",
     "node-polyfill-webpack-plugin": "^4.0.0",
     "prettier": "^3.2.5",
diff --git a/frontend/.env.prod b/frontend/.env.prod
new file mode 100644
index 0000000..e69de29