Resolve start-up errors

backend/package.json

@@ -3,7 +3,8 @@
   "version": "0.2.1",
   "private": true,
   "scripts": {
-    "start": "node ./src/bin/www"
+    "start": "node ./src/bin/www",
+    "dev": "nodemon ./src/bin/www"
   },
   "dependencies": {
     "@google/maps": "^0.4.5",

package.json

@@ -10,9 +10,9 @@
   "scripts": {
     "dev:all": "concurrently \"npm run dev:backend\" \"npm run dev:app\"",
     "dev:backend": "cd backend && npm run dev",
-    "dev:app": "cd app && ionic serve --host=0.0.0.0 --port=8100",
+    "dev:app": "cd app && npm run ionic:serve -- --address 0.0.0.0 --port 8100",
     "dev:backend-only": "cd backend && npm run dev",
-    "dev:app-only": "cd app && ionic serve --host=0.0.0.0 --port=8100",
+    "dev:app-only": "cd app && npm run ionic:serve -- --address 0.0.0.0 --port 8100",
     "install:all": "npm install && npm run install:workspaces",
     "install:workspaces": "npm install --workspaces",
     "seed": "cd backend && npm run seed",