diff --git a/Gemfile b/Gemfile
index c422a910..85521327 100644
--- a/Gemfile
+++ b/Gemfile
@@ -25,6 +25,8 @@ gem 'turbo-rails', '~> 2.0'
 # For authentication.
 gem 'devise', '~> 4.9', '>= 4.9.2'
 gem 'devise-encryptable', '~> 0.2.0'
+gem 'omniauth', '~> 2.1'
+gem 'omniauth-rails_csrf_protection', '~> 1.0'
 
 # For pagination UI.
 gem 'will_paginate', '~> 4.0'
diff --git a/Gemfile.lock b/Gemfile.lock
index 4e5d4d7a..30025cdc 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -164,6 +164,7 @@ GEM
       temple (>= 0.8.2)
       thor
       tilt
+    hashie (5.0.0)
     http_accept_language (2.1.1)
     httparty (0.21.0)
       mini_mime (>= 1.0.0)
@@ -214,6 +215,13 @@ GEM
     nokogiri (1.16.2)
       mini_portile2 (~> 2.8.2)
       racc (~> 1.4)
+    omniauth (2.1.2)
+      hashie (>= 3.4.6)
+      rack (>= 2.2.3)
+      rack-protection
+    omniauth-rails_csrf_protection (1.0.1)
+      actionpack (>= 4.2)
+      omniauth (~> 2.0)
     openssl (3.2.0)
     orm_adapter (0.5.0)
     parallel (1.24.0)
@@ -239,6 +247,9 @@ GEM
       rack (>= 1.0, < 4)
     rack-mini-profiler (3.3.1)
       rack (>= 1.2.0)
+    rack-protection (4.0.0)
+      base64 (>= 0.1.0)
+      rack (>= 3.0.0, < 4)
     rack-session (2.0.0)
       rack (>= 3.0.0)
     rack-test (2.1.0)
@@ -382,6 +393,8 @@ DEPENDENCIES
   memory_profiler (~> 1.0)
   mysql2 (~> 0.5.5)
   nokogiri (~> 1.15, >= 1.15.3)
+  omniauth (~> 2.1)
+  omniauth-rails_csrf_protection (~> 1.0)
   parallel (~> 1.23)
   rack-attack (~> 6.7)
   rack-mini-profiler (~> 3.1)
diff --git a/app/models/auth_user.rb b/app/models/auth_user.rb
index f649257c..7de07bc1 100644
--- a/app/models/auth_user.rb
+++ b/app/models/auth_user.rb
@@ -2,7 +2,7 @@ class AuthUser < AuthRecord
   self.table_name = 'users'
 
   devise :database_authenticatable, :encryptable, :registerable, :validatable,
-    :rememberable, :trackable, :recoverable
+    :rememberable, :trackable, :recoverable, omniauthable: [:developer]
 
   validates :name, presence: true, uniqueness: {case_sensitive: false},
     length: {maximum: 20}
diff --git a/config/initializers/devise.rb b/config/initializers/devise.rb
index e852d897..6306b365 100644
--- a/config/initializers/devise.rb
+++ b/config/initializers/devise.rb
@@ -273,7 +273,7 @@ Devise.setup do |config|
   # ==> OmniAuth
   # Add a new OmniAuth provider. Check the wiki for more information on setting
   # up on your models and hooks.
-  # config.omniauth :github, 'APP_ID', 'APP_SECRET', scope: 'user,public_repo'
+  config.omniauth :developer
 
   # ==> Warden configuration
   # If you want to use other strategies, that are not supported by Devise, or
diff --git a/db/openneo_id_migrate/20240313200849_add_omniauth_fields_to_users.rb b/db/openneo_id_migrate/20240313200849_add_omniauth_fields_to_users.rb
new file mode 100644
index 00000000..89369425
--- /dev/null
+++ b/db/openneo_id_migrate/20240313200849_add_omniauth_fields_to_users.rb
@@ -0,0 +1,6 @@
+class AddOmniauthFieldsToUsers < ActiveRecord::Migration[7.1]
+  def change
+    add_column :users, :provider, :string
+    add_column :users, :uid, :string
+  end
+end
diff --git a/db/openneo_id_schema.rb b/db/openneo_id_schema.rb
index 930f0827..4a630c3b 100644
--- a/db/openneo_id_schema.rb
+++ b/db/openneo_id_schema.rb
@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[7.1].define(version: 2023_08_07_005748) do
+ActiveRecord::Schema[7.1].define(version: 2024_03_13_200849) do
   create_table "users", id: { type: :integer, unsigned: true }, charset: "utf8mb3", collation: "utf8mb3_general_ci", force: :cascade do |t|
     t.string "name", limit: 20, null: false
     t.string "encrypted_password", limit: 64, null: false
@@ -29,6 +29,8 @@ ActiveRecord::Schema[7.1].define(version: 2023_08_07_005748) do
     t.datetime "updated_at", precision: nil
     t.datetime "reset_password_sent_at", precision: nil
     t.datetime "remember_created_at"
+    t.string "provider"
+    t.string "uid"
     t.index ["email"], name: "index_users_on_email", unique: true
     t.index ["reset_password_token"], name: "index_users_on_reset_password_token", unique: true
     t.index ["unlock_token"], name: "index_users_on_unlock_token", unique: true
diff --git a/vendor/cache/hashie-5.0.0.gem b/vendor/cache/hashie-5.0.0.gem
new file mode 100644
index 00000000..ae9aae4a
Binary files /dev/null and b/vendor/cache/hashie-5.0.0.gem differ
diff --git a/vendor/cache/omniauth-2.1.2.gem b/vendor/cache/omniauth-2.1.2.gem
new file mode 100644
index 00000000..ba7a07b1
Binary files /dev/null and b/vendor/cache/omniauth-2.1.2.gem differ
diff --git a/vendor/cache/omniauth-rails_csrf_protection-1.0.1.gem b/vendor/cache/omniauth-rails_csrf_protection-1.0.1.gem
new file mode 100644
index 00000000..98607a34
Binary files /dev/null and b/vendor/cache/omniauth-rails_csrf_protection-1.0.1.gem differ
diff --git a/vendor/cache/rack-protection-4.0.0.gem b/vendor/cache/rack-protection-4.0.0.gem
new file mode 100644
index 00000000..2ad0f428
Binary files /dev/null and b/vendor/cache/rack-protection-4.0.0.gem differ