Laravel Haystack is a package that allows you to have a job chain stored in the database. Since all of the jobs in the chain are in the database, memory usage is low and you can delay jobs for a long time or have long-running jobs without risking using all your memory.
Low memory consumption as one job is processed at a time and the chain is stored in the database You can delay/release jobs for as long as you want since it will use the scheduler to restart a chain.
To prepare your jobs for Laravel Haystack, you must add the StackableJob interface and Stackable trait to your jobs.