I want to run more than a single command in a dyno.
The quickest way maybe to list the commands to run, each followed by an
&, with a
wait -n in the end, in the
web: puma -C config/puma.rb & sidekiq & wait -n
This runs all the command in the background.
wait -n exits when at least one of the commands exits and triggers the dyno to restart. Please watch the app metrics so that the commands don't exhaust memory and CPU.