Use remote backend

platform/versions.tf

@@ -1,9 +1,19 @@
 terraform {
+  required_version = ">= 0.13"
+
+  backend "remote" {
+    hostname     = "app.terraform.io"
+    organization = "khuedoan"
+
+    workspaces {
+      name = "homelab"
+    }
+  }
+
   required_providers {
     rke = {
       source = "rancher/rke"
       version = "1.1.3"
     }
   }
-  required_version = ">= 0.13"
 }