First crack

db/migrate/20251023053836_create_groups.rb

@@ -0,0 +1,11 @@
+class CreateGroups < ActiveRecord::Migration[8.1]
+  def change
+    create_table :groups do |t|
+      t.string :name, null: false
+      t.text :description
+
+      t.timestamps
+    end
+    add_index :groups, :name, unique: true
+  end
+end