diff --git a/package-lock.json b/package-lock.json
index 6c7ea73f..f2f81212 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "demo",
-  "version": "3.2.0",
+  "version": "4.0.0",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "demo",
-      "version": "3.2.0",
+      "version": "4.0.0",
       "hasInstallScript": true,
       "dependencies": {
         "@angular/animations": "15.1.2",
@@ -35,6 +35,7 @@
         "@nrwl/linter": "15.6.3",
         "@nrwl/nx-cloud": "15.0.2",
         "@types/dragula": "^2.1.34",
+        "@types/fs-extra": "9.0.7",
         "@types/jest": "28.1.8",
         "@types/node": "18.7.1",
         "@typescript-eslint/eslint-plugin": "5.49.0",
@@ -46,6 +47,7 @@
         "eslint": "8.15.0",
         "eslint-config-prettier": "8.3.0",
         "eslint-plugin-cypress": "2.12.1",
+        "fs-extra": "9.1.0",
         "jest": "28.1.3",
         "jest-environment-jsdom": "28.1.1",
         "jest-preset-angular": "12.2.3",
@@ -4747,6 +4749,19 @@
         "tslib": "^2.3.0"
       }
     },
+    "node_modules/@nrwl/js/node_modules/fs-extra": {
+      "version": "11.1.0",
+      "resolved": "https://registry.npmjs.org/fs-extra/-/fs-extra-11.1.0.tgz",
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+      "dependencies": {
+        "graceful-fs": "^4.2.0",
+        "jsonfile": "^6.0.1",
+        "universalify": "^2.0.0"
+      },
+      "engines": {
+        "node": ">=14.14"
+      }
+    },
     "node_modules/@nrwl/js/node_modules/source-map": {
       "version": "0.6.1",
       "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
@@ -4943,6 +4958,19 @@
         "webpack-subresource-integrity": "^5.1.0"
       }
     },
+    "node_modules/@nrwl/webpack/node_modules/fs-extra": {
+      "version": "11.1.0",
+      "resolved": "https://registry.npmjs.org/fs-extra/-/fs-extra-11.1.0.tgz",
+      "integrity": "sha512-0rcTq621PD5jM/e0a3EJoGC/1TC5ZBCERW82LQuwfGnCa1V8w7dpYH1yNu+SLb6E5dkeCBzKEyLGlFrnr+dUyw==",
+      "dependencies": {
+        "graceful-fs": "^4.2.0",
+        "jsonfile": "^6.0.1",
+        "universalify": "^2.0.0"
+      },
+      "engines": {
+        "node": ">=14.14"
+      }
+    },
     "node_modules/@nrwl/webpack/node_modules/webpack-merge": {
       "version": "5.8.0",
       "resolved": "https://registry.npmjs.org/webpack-merge/-/webpack-merge-5.8.0.tgz",
@@ -5006,6 +5034,19 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "node_modules/@nrwl/workspace/node_modules/fs-extra": {
+      "version": "11.1.0",
+      "resolved": "https://registry.npmjs.org/fs-extra/-/fs-extra-11.1.0.tgz",
+      "integrity": "sha512-0rcTq621PD5jM/e0a3EJoGC/1TC5ZBCERW82LQuwfGnCa1V8w7dpYH1yNu+SLb6E5dkeCBzKEyLGlFrnr+dUyw==",
+      "dependencies": {
+        "graceful-fs": "^4.2.0",
+        "jsonfile": "^6.0.1",
+        "universalify": "^2.0.0"
+      },
+      "engines": {
+        "node": ">=14.14"
+      }
+    },
     "node_modules/@nrwl/workspace/node_modules/glob": {
       "version": "7.1.4",
       "resolved": "https://registry.npmjs.org/glob/-/glob-7.1.4.tgz",
@@ -5351,6 +5392,15 @@
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     },
+    "node_modules/@types/fs-extra": {
+      "version": "9.0.7",
+      "resolved": "https://registry.npmjs.org/@types/fs-extra/-/fs-extra-9.0.7.tgz",
+      "integrity": "sha512-YGq2A6Yc3bldrLUlm17VNWOnUbnEzJ9CMgOeLFtQF3HOCN5lQBO8VyjG00a5acA5NNSM30kHVGp1trZgnVgi1Q==",
+      "dev": true,
+      "dependencies": {
+        "@types/node": "*"
+      }
+    },
     "node_modules/@types/graceful-fs": {
       "version": "4.1.6",
       "resolved": "https://registry.npmjs.org/@types/graceful-fs/-/graceful-fs-4.1.6.tgz",
@@ -6697,6 +6747,15 @@
       "resolved": "https://registry.npmjs.org/asynckit/-/asynckit-0.4.0.tgz",
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     },
+    "node_modules/at-least-node": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/at-least-node/-/at-least-node-1.0.0.tgz",
+      "integrity": "sha512-+q/t7Ekv1EDY2l6Gda6LLiX14rU9TV20Wa3ofeQmwPFZbOMo9DXrLbOjFaaclkXKWidIaopwAObQDqwWtGUjqg==",
+      "dev": true,
+      "engines": {
+        "node": ">= 4.0.0"
+      }
+    },
     "node_modules/atoa": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/atoa/-/atoa-1.0.0.tgz",
@@ -11513,16 +11572,18 @@
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     },
     "node_modules/fs-extra": {
-      "version": "11.1.0",
-      "resolved": "https://registry.npmjs.org/fs-extra/-/fs-extra-11.1.0.tgz",
-      "integrity": "sha512-0rcTq621PD5jM/e0a3EJoGC/1TC5ZBCERW82LQuwfGnCa1V8w7dpYH1yNu+SLb6E5dkeCBzKEyLGlFrnr+dUyw==",
+      "version": "9.1.0",
+      "resolved": "https://registry.npmjs.org/fs-extra/-/fs-extra-9.1.0.tgz",
+      "integrity": "sha512-hcg3ZmepS30/7BSFqRvoo3DOMQu7IjqxO5nCDt+zM9XWjb33Wg7ziNT+Qvqbuc3+gWpzO02JubVyk2G4Zvo1OQ==",
+      "dev": true,
       "dependencies": {
+        "at-least-node": "^1.0.0",
         "graceful-fs": "^4.2.0",
         "jsonfile": "^6.0.1",
         "universalify": "^2.0.0"
       },
       "engines": {
-        "node": ">=14.14"
+        "node": ">=10"
       }
     },
     "node_modules/fs-minipass": {
@@ -16811,6 +16872,19 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "node_modules/nx/node_modules/fs-extra": {
+      "version": "11.1.0",
+      "resolved": "https://registry.npmjs.org/fs-extra/-/fs-extra-11.1.0.tgz",
+      "integrity": "sha512-0rcTq621PD5jM/e0a3EJoGC/1TC5ZBCERW82LQuwfGnCa1V8w7dpYH1yNu+SLb6E5dkeCBzKEyLGlFrnr+dUyw==",
+      "dependencies": {
+        "graceful-fs": "^4.2.0",
+        "jsonfile": "^6.0.1",
+        "universalify": "^2.0.0"
+      },
+      "engines": {
+        "node": ">=14.14"
+      }
+    },
     "node_modules/nx/node_modules/glob": {
       "version": "7.1.4",
       "resolved": "https://registry.npmjs.org/glob/-/glob-7.1.4.tgz",
@@ -25032,6 +25106,16 @@
         "tslib": "^2.3.0"
       },
       "dependencies": {
+        "fs-extra": {
+          "version": "11.1.0",
+          "resolved": "https://registry.npmjs.org/fs-extra/-/fs-extra-11.1.0.tgz",
+          "integrity": "sha512-0rcTq621PD5jM/e0a3EJoGC/1TC5ZBCERW82LQuwfGnCa1V8w7dpYH1yNu+SLb6E5dkeCBzKEyLGlFrnr+dUyw==",
+          "requires": {
+            "graceful-fs": "^4.2.0",
+            "jsonfile": "^6.0.1",
+            "universalify": "^2.0.0"
+          }
+        },
         "source-map": {
           "version": "0.6.1",
           "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
@@ -25197,6 +25281,16 @@
         "webpack-subresource-integrity": "^5.1.0"
       },
       "dependencies": {
+        "fs-extra": {
+          "version": "11.1.0",
+          "resolved": "https://registry.npmjs.org/fs-extra/-/fs-extra-11.1.0.tgz",
+          "integrity": "sha512-0rcTq621PD5jM/e0a3EJoGC/1TC5ZBCERW82LQuwfGnCa1V8w7dpYH1yNu+SLb6E5dkeCBzKEyLGlFrnr+dUyw==",
+          "requires": {
+            "graceful-fs": "^4.2.0",
+            "jsonfile": "^6.0.1",
+            "universalify": "^2.0.0"
+          }
+        },
         "webpack-merge": {
           "version": "5.8.0",
           "resolved": "https://registry.npmjs.org/webpack-merge/-/webpack-merge-5.8.0.tgz",
@@ -25245,6 +25339,16 @@
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         },
+        "fs-extra": {
+          "version": "11.1.0",
+          "resolved": "https://registry.npmjs.org/fs-extra/-/fs-extra-11.1.0.tgz",
+          "integrity": "sha512-0rcTq621PD5jM/e0a3EJoGC/1TC5ZBCERW82LQuwfGnCa1V8w7dpYH1yNu+SLb6E5dkeCBzKEyLGlFrnr+dUyw==",
+          "requires": {
+            "graceful-fs": "^4.2.0",
+            "jsonfile": "^6.0.1",
+            "universalify": "^2.0.0"
+          }
+        },
         "glob": {
           "version": "7.1.4",
           "resolved": "https://registry.npmjs.org/glob/-/glob-7.1.4.tgz",
@@ -25543,6 +25647,15 @@
         }
       }
     },
+    "@types/fs-extra": {
+      "version": "9.0.7",
+      "resolved": "https://registry.npmjs.org/@types/fs-extra/-/fs-extra-9.0.7.tgz",
+      "integrity": "sha512-YGq2A6Yc3bldrLUlm17VNWOnUbnEzJ9CMgOeLFtQF3HOCN5lQBO8VyjG00a5acA5NNSM30kHVGp1trZgnVgi1Q==",
+      "dev": true,
+      "requires": {
+        "@types/node": "*"
+      }
+    },
     "@types/graceful-fs": {
       "version": "4.1.6",
       "resolved": "https://registry.npmjs.org/@types/graceful-fs/-/graceful-fs-4.1.6.tgz",
@@ -26565,6 +26678,12 @@
       "resolved": "https://registry.npmjs.org/asynckit/-/asynckit-0.4.0.tgz",
       "integrity": "sha512-Oei9OH4tRh0YqU3GxhX79dM/mwVgvbZJaSNaRk+bshkj0S5cfHcgYakreBjrHwatXKbz+IoIdYLxrKim2MjW0Q=="
     },
+    "at-least-node": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/at-least-node/-/at-least-node-1.0.0.tgz",
+      "integrity": "sha512-+q/t7Ekv1EDY2l6Gda6LLiX14rU9TV20Wa3ofeQmwPFZbOMo9DXrLbOjFaaclkXKWidIaopwAObQDqwWtGUjqg==",
+      "dev": true
+    },
     "atoa": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/atoa/-/atoa-1.0.0.tgz",
@@ -30231,10 +30350,12 @@
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     },
     "fs-extra": {
-      "version": "11.1.0",
-      "resolved": "https://registry.npmjs.org/fs-extra/-/fs-extra-11.1.0.tgz",
-      "integrity": "sha512-0rcTq621PD5jM/e0a3EJoGC/1TC5ZBCERW82LQuwfGnCa1V8w7dpYH1yNu+SLb6E5dkeCBzKEyLGlFrnr+dUyw==",
+      "version": "9.1.0",
+      "resolved": "https://registry.npmjs.org/fs-extra/-/fs-extra-9.1.0.tgz",
+      "integrity": "sha512-hcg3ZmepS30/7BSFqRvoo3DOMQu7IjqxO5nCDt+zM9XWjb33Wg7ziNT+Qvqbuc3+gWpzO02JubVyk2G4Zvo1OQ==",
+      "dev": true,
       "requires": {
+        "at-least-node": "^1.0.0",
         "graceful-fs": "^4.2.0",
         "jsonfile": "^6.0.1",
         "universalify": "^2.0.0"
@@ -34148,6 +34269,16 @@
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           "integrity": "sha512-x/5fWmGMnbKQAaNwN+UZlV79qBLM9JFnJuJ03gIi5whrob0xV0ofNVHy9DhwGdsMJQc2OKv0oGmLzvaqvAVv+g=="
         },
+        "fs-extra": {
+          "version": "11.1.0",
+          "resolved": "https://registry.npmjs.org/fs-extra/-/fs-extra-11.1.0.tgz",
+          "integrity": "sha512-0rcTq621PD5jM/e0a3EJoGC/1TC5ZBCERW82LQuwfGnCa1V8w7dpYH1yNu+SLb6E5dkeCBzKEyLGlFrnr+dUyw==",
+          "requires": {
+            "graceful-fs": "^4.2.0",
+            "jsonfile": "^6.0.1",
+            "universalify": "^2.0.0"
+          }
+        },
         "glob": {
           "version": "7.1.4",
           "resolved": "https://registry.npmjs.org/glob/-/glob-7.1.4.tgz",
diff --git a/package.json b/package.json
index f0e1268c..43ec0422 100644
--- a/package.json
+++ b/package.json
@@ -4,7 +4,7 @@
   "private": true,
   "scripts": {
     "ng": "nx",
-    "start": "ng serve",
+    "start": "npx nx run demo:serve",
     "demo.build": "ng build",
     "demo.build-prod": "ng build",
     "build": "nx run ng2-dragula:build",
@@ -41,6 +41,7 @@
     "@nrwl/jest": "15.6.3",
     "@nrwl/linter": "15.6.3",
     "@nrwl/nx-cloud": "15.0.2",
+    "@types/fs-extra": "9.0.7",
     "@types/dragula": "^2.1.34",
     "@types/jest": "28.1.8",
     "@types/node": "18.7.1",
@@ -53,6 +54,7 @@
     "eslint": "8.15.0",
     "eslint-config-prettier": "8.3.0",
     "eslint-plugin-cypress": "2.12.1",
+    "fs-extra": "9.1.0",
     "jest": "28.1.3",
     "jest-environment-jsdom": "28.1.1",
     "jest-preset-angular": "12.2.3",