diff --git a/package.json b/package.json
index df2fdab..807c64f 100644
--- a/package.json
+++ b/package.json
@@ -4,13 +4,17 @@
   "description": "server code for mentor labs",
   "main": "server/server.ts",
   "license": "MIT",
+  "engines": {
+    "node": "14.17.1",
+    "yarn": "1.22.10"
+  },
   "scripts": {
     "start": "cross-env NODE_ENV=production node prod/server.js",
     "dev": "concurrently \"yarn server:dev\" \"yarn client:dev\"",
     "client:dev": "cd client && yarn start",
     "server:dev": "cross-env NODE_ENV=development nodemon server/main.ts",
     "server:build": "tsc -p tsconfig.prod.json",
-    "client:build": "yarn --prefix ./client run build && yarn run client:move-build",
+    "client:build": "yarn --cwd ./client build && yarn client:move-build",
     "client:move-build": "ts-node utils/move-from-to.ts client/build prod/client",
     "lint": "eslint server/**/*.ts",
     "lint:fix": "eslint server/**/*.ts --fix",
@@ -22,7 +26,7 @@
     "prepare": "husky install",
     "pre-commit": "lint-staged",
     "heroku-prebuild": "cd client && yarn install --dev",
-    "heroku-postbuild": "NPM_CONFIG_PRODUCTION=false yarn run server:build && yarn run client:install && yarn run client:build"
+    "heroku-postbuild": "NPM_CONFIG_PRODUCTION=false yarn server:build && yarn client:install && yarn run client:build"
   },
   "devDependencies": {
     "@commitlint/cli": "^12.1.4",
@@ -31,6 +35,7 @@
     "@types/cookie-parser": "^1.4.2",
     "@types/cors": "^2.8.10",
     "@types/express": "^4.17.12",
+    "@types/fs-extra": "^9.0.13",
     "@types/gravatar": "^1.8.2",
     "@types/jest": "^27.0.2",
     "@types/jsonwebtoken": "^8.5.1",
@@ -58,6 +63,7 @@
     "danfojs-node": "^0.3.3",
     "dotenv": "^10.0.0",
     "express": "^4.17.1",
+    "fs-extra": "^10.0.0",
     "gravatar": "^1.8.1",
     "helmet": "^4.6.0",
     "history": "^5.0.1",
diff --git a/tsconfig.json b/tsconfig.json
index d8dedf3..9b8062e 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -25,5 +25,5 @@
     "typeRoots": ["server/common/types", "./node_modules/@types"]
   },
   "include": ["server/**/*.ts"],
-  "exclude": ["node_modules", "client"]
+  "exclude": ["node_modules", "client", "./utils"]
 }
diff --git a/yarn.lock b/yarn.lock
index ed3fa6e..202eade 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -958,6 +958,13 @@
     "@types/qs" "*"
     "@types/serve-static" "*"
 
+"@types/fs-extra@^9.0.13":
+  version "9.0.13"
+  resolved "https://registry.yarnpkg.com/@types/fs-extra/-/fs-extra-9.0.13.tgz#7594fbae04fe7f1918ce8b3d213f74ff44ac1f45"
+  integrity sha512-nEnwB++1u5lVDM2UI4c1+5R+FYaKfaAzS4OococimjVm3nQw3TuzH5UNsocrcTBbhnerblyHj4A49qXbIiZdpA==
+  dependencies:
+    "@types/node" "*"
+
 "@types/graceful-fs@^4.1.2":
   version "4.1.5"
   resolved "https://registry.yarnpkg.com/@types/graceful-fs/-/graceful-fs-4.1.5.tgz#21ffba0d98da4350db64891f92a9e5db3cdb4e15"
@@ -2921,6 +2928,15 @@ fresh@0.5.2:
   resolved "https://registry.yarnpkg.com/fresh/-/fresh-0.5.2.tgz#3d8cadd90d976569fa835ab1f8e4b23a105605a7"
   integrity sha1-PYyt2Q2XZWn6g1qx+OSyOhBWBac=
 
+fs-extra@^10.0.0:
+  version "10.0.0"
+  resolved "https://registry.yarnpkg.com/fs-extra/-/fs-extra-10.0.0.tgz#9ff61b655dde53fb34a82df84bb214ce802e17c1"
+  integrity sha512-C5owb14u9eJwizKGdchcDUQeFtlSHHthBk8pbX9Vc1PFZrLombudjDnNns88aYslCyF6IY5SUw3Roz6xShcEIQ==
+  dependencies:
+    graceful-fs "^4.2.0"
+    jsonfile "^6.0.1"
+    universalify "^2.0.0"
+
 fs-extra@^9.0.0:
   version "9.1.0"
   resolved "https://registry.yarnpkg.com/fs-extra/-/fs-extra-9.1.0.tgz#5954460c764a8da2094ba3554bf839e6b9a7c86d"