Assisted-by: Claude Sonnet 4.6 via Claude Code

diff --git a/Rakefile b/Rakefile
index 3c67845..f3575f0 100644
--- a/Rakefile
+++ b/Rakefile
@@ -21,7 +21,7 @@ task default: :test
 
 desc "Start dev server with pre-seeded in-memory database"
 task :dev do
-  Sequel::Migrator.run(DB, "db/migrate") unless Dir.empty?("db/migrate")
+  Sequel::Migrator.run(Domus::DB, "db/migrate") unless Dir.empty?("db/migrate")
 
   require "rack"
   Rack::Server.start(config: "config.ru", Port: 9292)
@@ -33,16 +33,16 @@ namespace :db do
     if Dir.empty?("db/migrate")
       puts "No migrations."
     else
-      Sequel::Migrator.run(DB, "db/migrate")
+      Sequel::Migrator.run(Domus::DB, "db/migrate")
       puts "Migrated."
     end
   end
 
   desc "Rollback the last migration"
   task :rollback do
-    version = DB[:schema_migrations].order(Sequel.desc(:filename)).limit(1).get(:filename)
+    version = Domus::DB[:schema_migrations].order(Sequel.desc(:filename)).limit(1).get(:filename)
     if version
-      Sequel::Migrator.run(DB, "db/migrate", target: 0, current: version.sub(/\.rb$/, ""))
+      Sequel::Migrator.run(Domus::DB, "db/migrate", target: 0, current: version.sub(/\.rb$/, ""))
       puts "Rolled back #{version}."
     else
       puts "Nothing to rollback."
diff --git a/config.ru b/config.ru
index d8576e9..2f617a8 100644
--- a/config.ru
+++ b/config.ru
@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
-require_relative "app"
+require_relative "lib/app"
 
-run App
+run Domus::App
diff --git a/lib/app.rb b/lib/app.rb
index 09938f0..6306b52 100644
--- a/lib/app.rb
+++ b/lib/app.rb
@@ -3,16 +3,18 @@
 require "roda"
 require_relative "views/layout"
 
-class App < Roda
-  route do |r|
-    r.root do
-      render_with_layout { "ok" }
+module Domus
+  class App < Roda
+    route do |r|
+      r.root do
+        render_with_layout { "ok" }
+      end
     end
-  end
 
-  private
+    private
 
-  def render_with_layout(&block)
-    Views::Layout.new(&block).call
+    def render_with_layout(&block)
+      Views::Layout.new(&block).call
+    end
   end
 end
diff --git a/lib/config.rb b/lib/config.rb
index b41817a..a2d12b4 100644
--- a/lib/config.rb
+++ b/lib/config.rb
@@ -1,7 +1,9 @@
 # frozen_string_literal: true
 
-class Config < Data.define(:database_url)
-  def self.from_env
-    new(database_url: ENV.fetch("DATABASE_URL"))
+module Domus
+  class Config < Data.define(:database_url)
+    def self.from_env
+      new(database_url: ENV.fetch("DATABASE_URL"))
+    end
   end
 end
diff --git a/lib/db.rb b/lib/db.rb
index ae8a2dc..362481f 100644
--- a/lib/db.rb
+++ b/lib/db.rb
@@ -5,4 +5,6 @@ require "sequel/extensions/migration"
 
 require_relative "config"
 
-DB = Sequel.sqlite(Config.from_env.database_url)
+module Domus
+  DB = Sequel.sqlite(Config.from_env.database_url)
+end
diff --git a/lib/middleware/auth.rb b/lib/middleware/auth.rb
index f444559..c6a2e16 100644
--- a/lib/middleware/auth.rb
+++ b/lib/middleware/auth.rb
@@ -1,25 +1,26 @@
 # frozen_string_literal: true
 
-module Middleware
-end
-
-class Middleware::Auth
-  def initialize(app, header: "X-Forwarded-User")
-    @app = app
-    @header = header
-  end
+module Domus
+  module Middleware
+    class Auth
+      def initialize(app, header: "X-Forwarded-User")
+        @app = app
+        @header = header
+      end
 
-  def call(env)
-    user = env["HTTP_#{header_name}"]
-    return [401, {}, ["Unauthorized"]] unless user
+      def call(env)
+        user = env["HTTP_#{header_name}"]
+        return [401, {}, ["Unauthorized"]] unless user
 
-    env["domus.user"] = user
-    @app.call(env)
-  end
+        env["domus.user"] = user
+        @app.call(env)
+      end
 
-  private
+      private
 
-  def header_name
-    @header.upcase.tr("-", "_")
+      def header_name
+        @header.upcase.tr("-", "_")
+      end
+    end
   end
 end
diff --git a/lib/views/layout.rb b/lib/views/layout.rb
index 8e71449..127d737 100644
--- a/lib/views/layout.rb
+++ b/lib/views/layout.rb
@@ -2,26 +2,27 @@
 
 require "phlex"
 
-module Views
-end
-
-class Views::Layout < Phlex::HTML
-  def initialize(title: "Domus", &content)
-    @title = title
-    @content = content
-  end
+module Domus
+  module Views
+    class Layout < Phlex::HTML
+      def initialize(title: "Domus", &content)
+        @title = title
+        @content = content
+      end
 
-  def view_template
-    doctype
+      def view_template
+        doctype
 
-    html(lang: "en") do
-      head do
-        title { @title }
-        script defer: true, src: "https://cdn.jsdelivr.net/npm/alpinejs@3.x.x/dist/cdn.min.js"
-      end
+        html(lang: "en") do
+          head do
+            title { @title }
+            script defer: true, src: "https://cdn.jsdelivr.net/npm/alpinejs@3.x.x/dist/cdn.min.js"
+          end
 
-      body do
-        yield
+          body do
+            yield
+          end
+        end
       end
     end
   end
diff --git a/test/test_app.rb b/test/test_app.rb
index c6c7065..bc36c87 100644
--- a/test/test_app.rb
+++ b/test/test_app.rb
@@ -8,7 +8,7 @@ class TestApp < Minitest::Test
   include Rack::Test::Methods
 
   def app
-    App
+    Domus::App
   end
 
   def test_root
diff --git a/test/test_auth.rb b/test/test_auth.rb
index caa98e2..7be1bad 100644
--- a/test/test_auth.rb
+++ b/test/test_auth.rb
@@ -9,7 +9,7 @@ class TestAuth < Minitest::Test
 
   def app
     inner = proc { |env| [200, {}, ["hello #{env['domus.user']}"]] }
-    Middleware::Auth.new(inner)
+    Domus::Middleware::Auth.new(inner)
   end
 
   def test_allows_request_with_header