diff --git a/app/javascript/application.js b/app/javascript/application.js
index d933293..6d426e6 100644
--- a/app/javascript/application.js
+++ b/app/javascript/application.js
@@ -1,3 +1,3 @@
 // Entry point for the build script in your package.json
-import "@hotwired/turbo-rails"
-import "./controllers"
+import "@hotwired/turbo-rails";
+import "./controllers";
diff --git a/app/javascript/controllers/application.js b/app/javascript/controllers/application.js
index 1213e85..e297a52 100644
--- a/app/javascript/controllers/application.js
+++ b/app/javascript/controllers/application.js
@@ -1,9 +1,14 @@
-import { Application } from "@hotwired/stimulus"
+import { Application } from "@hotwired/stimulus";
+import Alpine from "alpinejs";
 
-const application = Application.start()
+const application = Application.start();
 
 // Configure Stimulus development experience
-application.debug = false
-window.Stimulus   = application
+application.debug = false;
+window.Stimulus = application;
 
-export { application }
+// Configure and load Alpine
+window.Alpine = Alpine;
+Alpine.start();
+
+export { application };
diff --git a/app/models/ticket.rb b/app/models/ticket.rb
new file mode 100644
index 0000000..71c236b
--- /dev/null
+++ b/app/models/ticket.rb
@@ -0,0 +1,8 @@
+class Ticket < ApplicationRecord
+  # Validations
+  validates :qr_code, presence: true, uniqueness: true
+  validates :party_id, presence: true
+  validates :user_id, presence: true
+  validates :price_cents, presence: true, numericality: { greater_than: 0 }
+  validates :status, presence: true, inclusion: { in: %w[active used expired refunded] }
+end
diff --git a/app/models/ticket_type.rb b/app/models/ticket_type.rb
new file mode 100644
index 0000000..c3b852b
--- /dev/null
+++ b/app/models/ticket_type.rb
@@ -0,0 +1,24 @@
+class TicketType < ApplicationRecord
+  # Associations
+  belongs_to :party
+  has_many :tickets
+
+  # Validations
+  validates :name, presence: true, length: { minimum: 3, maximum: 50 }
+  validates :description, presence: true, length: { minimum: 10, maximum: 500 }
+  validates :price_cents, presence: true, numericality: { greater_than: 0 }
+  validates :quantity, presence: true, numericality: { only_integer: true, greater_than: 0 }
+  validates :party_id, presence: true
+  validates :sale_start_at, presence: true
+  validates :sale_end_at, presence: true
+  validate :sale_end_after_start
+  validates :requires_id, inclusion: { in: [true, false] }
+  validates :minimum_age, numericality: { only_integer: true, greater_than_or_equal_to: 0, less_than_or_equal_to: 120 }, allow_nil: true
+
+  private
+
+  def sale_end_after_start
+    return unless sale_start_at && sale_end_at
+    errors.add(:sale_end_at, "must be after sale start") if sale_end_at <= sale_start_at
+  end
+end
diff --git a/db/migrate/20250823170408_create_ticket_types.rb b/db/migrate/20250823170408_create_ticket_types.rb
new file mode 100644
index 0000000..315db09
--- /dev/null
+++ b/db/migrate/20250823170408_create_ticket_types.rb
@@ -0,0 +1,17 @@
+class CreateTicketTypes < ActiveRecord::Migration[8.0]
+  def change
+    create_table :ticket_types do |t|
+      t.references :party, null: false, foreign_key: true
+      t.string :name
+      t.text :description
+      t.integer :price_cents
+      t.integer :quantity
+      t.datetime :sale_start_at
+      t.datetime :sale_end_at
+      t.boolean :requires_id
+      t.integer :minimum_age
+
+      t.timestamps
+    end
+  end
+end
diff --git a/db/migrate/20250823171354_create_tickets.rb b/db/migrate/20250823171354_create_tickets.rb
new file mode 100644
index 0000000..adf2350
--- /dev/null
+++ b/db/migrate/20250823171354_create_tickets.rb
@@ -0,0 +1,9 @@
+class CreateTickets < ActiveRecord::Migration[8.0]
+  def change
+    create_table :tickets do |t|
+      t.string :qr_code
+
+      t.timestamps
+    end
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index c4f87e2..1870a23 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[8.0].define(version: 2025_08_23_145902) do
+ActiveRecord::Schema[8.0].define(version: 2025_08_23_171354) do
   create_table "parties", charset: "utf8mb4", collation: "utf8mb4_uca1400_ai_ci", force: :cascade do |t|
     t.string "name", null: false
     t.text "description", null: false
@@ -27,6 +27,27 @@ ActiveRecord::Schema[8.0].define(version: 2025_08_23_145902) do
     t.index ["state"], name: "index_parties_on_state"
   end
 
+  create_table "ticket_types", charset: "utf8mb4", collation: "utf8mb4_uca1400_ai_ci", force: :cascade do |t|
+    t.bigint "party_id", null: false
+    t.string "name"
+    t.text "description"
+    t.integer "price_cents"
+    t.integer "quantity"
+    t.datetime "sale_start_at"
+    t.datetime "sale_end_at"
+    t.boolean "requires_id"
+    t.integer "minimum_age"
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
+    t.index ["party_id"], name: "index_ticket_types_on_party_id"
+  end
+
+  create_table "tickets", charset: "utf8mb4", collation: "utf8mb4_uca1400_ai_ci", force: :cascade do |t|
+    t.string "qr_code"
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
+  end
+
   create_table "users", charset: "utf8mb4", collation: "utf8mb4_uca1400_ai_ci", force: :cascade do |t|
     t.string "email", default: "", null: false
     t.string "encrypted_password", default: "", null: false
@@ -38,4 +59,6 @@ ActiveRecord::Schema[8.0].define(version: 2025_08_23_145902) do
     t.index ["email"], name: "index_users_on_email", unique: true
     t.index ["reset_password_token"], name: "index_users_on_reset_password_token", unique: true
   end
+
+  add_foreign_key "ticket_types", "parties"
 end
diff --git a/opencode.json b/opencode.json
new file mode 100644
index 0000000..64cb9b2
--- /dev/null
+++ b/opencode.json
@@ -0,0 +1,21 @@
+{
+  "$schema": "https://opencode.ai/config.json",
+  "provider": {
+    "myprovider": {
+      "npm": "@ai-sdk/openai-compatible",
+      "name": "Scaleway",
+      "options": {
+        "baseURL": "https://api.scaleway.ai/v1",
+        "apiKey": "928c8440-604b-423a-983b-00afd5a1164e"
+      },
+      "models": {
+        "devstral-small-2505": {
+          "name": "Devstral 2505"
+        },
+        "qwen3-coder-30b-a3b-instruct": {
+          "name": "Qwen3 Coder 30b a3b instruct"
+        }
+      }
+    }
+  }
+}
diff --git a/test/fixtures/tickets.yml b/test/fixtures/tickets.yml
new file mode 100644
index 0000000..558cdf2
--- /dev/null
+++ b/test/fixtures/tickets.yml
@@ -0,0 +1,7 @@
+# Read about fixtures at https://api.rubyonrails.org/classes/ActiveRecord/FixtureSet.html
+
+one:
+  qr_code: MyString
+
+two:
+  qr_code: MyString
diff --git a/test/models/ticket_test.rb b/test/models/ticket_test.rb
new file mode 100644
index 0000000..307fc7e
--- /dev/null
+++ b/test/models/ticket_test.rb
@@ -0,0 +1,7 @@
+require "test_helper"
+
+class TicketTest < ActiveSupport::TestCase
+  # test "the truth" do
+  #   assert true
+  # end
+end