Documentation instructions not working - uninitialized constant Flipper::Adapters::ActiveRecord::Model

[ceritium]

Hi, I am following the instructions in the ActiveRecord section for a fresh Rails 8.1.1 app, but it's failing with

 uninitialized constant Flipper::Adapters::ActiveRecord::Model (NameError)

Flipper::Adapters::ActiveRecord::Model.connects_to database: {

My initializer looks like this:

require 'flipper/adapters/active_record'

Flipper.configure do |config|
  config.adapter { Flipper::Adapters::ActiveRecord.new }
end

Flipper::Adapters::ActiveRecord::Model.connects_to database: {
  writing: :flipper, reading: :flipper_replica
}

And I added the following gems:

gem "flipper-active_record"
gem "flipper-ui"
gem "flipper"

It's not available on the initializer, but it is available once the application is loaded. What would be the proper approach to configure the database?

Many thanks.