diff --git a/Gemfile b/Gemfile
index bdd047171..65b7be293 100644
--- a/Gemfile
+++ b/Gemfile
@@ -76,6 +76,9 @@ group :test do
   gem "mocha"
 end
 
-group :saas do
+require_relative "lib/fizzy"
+if Fizzy.saas?
+  gem "activeresource", require: "active_resource"
+  gem "queenbee", git: "https://github.com/basecamp/queenbee-plugin"
   gem "fizzy-saas", path: "gems/fizzy-saas"
 end
diff --git a/Gemfile.lock b/Gemfile.lock
index 6b7771fd3..e2c03955c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -122,14 +122,6 @@ GIT
       tsort (>= 0.2)
       zeitwerk (~> 2.6)
 
-PATH
-  remote: gems/fizzy-saas
-  specs:
-    fizzy-saas (0.1.0)
-      queenbee
-      rails (>= 8.1.0.beta1)
-      rails_structured_logging
-
 GEM
   remote: https://rubygems.org/
   specs:
@@ -377,8 +369,6 @@ GEM
     public_suffix (7.0.0)
     puma (7.1.0)
       nio4r (~> 2.0)
-    queenbee (1.5.1)
-      json (> 1.8)
     raabro (1.4.0)
     racc (1.8.1)
     rack (3.2.4)
@@ -587,7 +577,6 @@ DEPENDENCIES
   capybara
   debug
   faker
-  fizzy-saas!
   geared_pagination (~> 1.2)
   image_processing (~> 1.14)
   importmap-rails
diff --git a/lib/fizzy.rb b/lib/fizzy.rb
index 2a3b6e221..7bda12252 100644
--- a/lib/fizzy.rb
+++ b/lib/fizzy.rb
@@ -1,5 +1,6 @@
 module Fizzy
   def self.saas?
-    defined?(Fizzy::Saas::Engine)
+    return @saas if defined?(@saas)
+    @saas = !!(ENV["SAAS"] || File.exist?(File.expand_path("../../tmp/saas.txt", __dir__)))
   end
 end