Sucker Punch adapter for Active Job
Sucker Punch is a single-process Ruby asynchronous processing library. This reduces the cost of hosting on a service like Heroku along with the memory footprint of having to maintain additional jobs if hosting on a dedicated server. All queues can run within a single application (eg. Rails, Sinatra, etc.) process.
Read more about Sucker Punch here.
To use Sucker Punch set the queue_adapter config to
Rails.application.config.active_job.queue_adapter = :sucker_punch