I have an application running on Heroku with a small number of settings that I want to change from time to time, and I would like to use Heroku configuration files to store these settings so that they remain for a long time.
I know that I can change the settings from the Heroku toolbar or Heroku CLI, but I would like to change them from the user interface of the application.
I cannot figure out how to change Heroku application configuration from application code. If I just change the dyno environment, for example, these changes are not saved in the application configuration.
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