diff --git a/.devcontainer/container/commands/import.sh b/.devcontainer/container/commands/import.sh
deleted file mode 100755
index f20d414..0000000
--- a/.devcontainer/container/commands/import.sh
+++ /dev/null
@@ -1,9 +0,0 @@
-#!/bin/bash
-
-cd .devcontainer/data
-
-tar xvfz library.tgz
-
-mongorestore --uri mongodb://localhost:27017/library --username admin --password mongodb  --drop --authenticationDatabase=admin library
-
-cd ../..
diff --git a/.devcontainer/create-library-user.js b/.devcontainer/create-library-user.js
new file mode 100644
index 0000000..b201147
--- /dev/null
+++ b/.devcontainer/create-library-user.js
@@ -0,0 +1,13 @@
+use library
+
+db.createUser({
+  user: "admin",
+  pwd: "mongodb",
+  roles: [
+    { role: "userAdminAnyDatabase", db: "admin" },
+    { role: "dbOwner", db: "library" },
+    { role: "readWrite", db: "library" }
+  ]
+});
+
+print("User 'admin' created in 'library' database.");  
diff --git a/.devcontainer/create-library-user.sh b/.devcontainer/create-library-user.sh
new file mode 100644
index 0000000..0e502b8
--- /dev/null
+++ b/.devcontainer/create-library-user.sh
@@ -0,0 +1,2 @@
+# we create a user to be able to import data into MongoDB
+mongosh .devcontainer/create-library-user.js
\ No newline at end of file
diff --git a/.devcontainer/data/library.tgz b/.devcontainer/data/library.tgz
deleted file mode 100644
index b02824d..0000000
Binary files a/.devcontainer/data/library.tgz and /dev/null differ
diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
index 884c664..d47e3f5 100644
--- a/.devcontainer/devcontainer.json
+++ b/.devcontainer/devcontainer.json
@@ -12,15 +12,16 @@
   },
   "containerEnv": {
     "MONGODB_URI": "mongodb://admin:mongodb@localhost:27017/"
-  },	
-	"postCreateCommand": "",
+  },
+  "postAttachCommand": "sh .devcontainer/create-library-user.sh",
   "customizations": {
-    "codespaces": {"openFiles": []},
+    "codespaces": {
+      "openFiles": [
+        "README.md"
+      ]
+    },
     "vscode": {
       "extensions": [
-        "ms-python.python",
-        "ms-toolsai.jupyter",
-        "ms-tools.vscode-jupyter",
         "mongodb.mongodb-vscode"
       ]
     }
diff --git a/.devcontainer/docker-compose.yml b/.devcontainer/docker-compose.yml
index 743fef5..d28868a 100644
--- a/.devcontainer/docker-compose.yml
+++ b/.devcontainer/docker-compose.yml
@@ -17,7 +17,7 @@ services:
     network_mode: service:mongodb
 
   migrator:
-    image: public.ecr.aws/v4d7k6c9/relational-migrator:1.13.2
+    image: public.ecr.aws/v4d7k6c9/relational-migrator:1.14.0
     ports:
       - "8080:8080"
     depends_on:
diff --git a/.vscode/settings.json b/.vscode/settings.json
index 35c4a9f..e84a8eb 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -1,8 +1,8 @@
 {
     "mdb.presetConnections": [
         {
-            "name": "mongodb container",
-            "connectionString": "mongodb://admin:mongodb@localhost:27017"
+            "name": "MongoDB destination container",
+            "connectionString": "mongodb://admin:mongodb@mongodb:27017"
         }
     ]
 }
\ No newline at end of file
diff --git a/README.md b/README.md
index 2654d63..51a8c7d 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 
 ## Workshop instructions
 
-You can access the lab [here](https://mdb.link/rm-workshop)
+You can access the lab instructions [here](https://mdb.link/rm-workshop)
 
 ## Database connection
 
@@ -11,3 +11,11 @@ This codespace runs a `mongodb-local` image, you can connect to it from the VS C
 ```
 mongodb://admin:mongodb@mongodb:27017/
 ```
+
+## Launch Relational Migrator
+
+Open the codespace URL with port `8080`  in your browser.
+To import, use this MongoDB Connection string: 
+```
+mongodb://admin:mongodb@mongodb:27017/library?authSource=admin
+```