StackGres clusters will be created with a carefully tuned initial Postgres configuration, curated by the highly expert OnGres Postgres DBA team.
This means that StackGres ships with a tuned configuration out of the box, and you will be covered well enough with this default configuration, even if you are not a Postgres advanced user. With StackGres, you don’t need to be a Postgres to operate production-ready clusters.
If you prefer to further tune Postgres, you can create custom configuration via the SGPostgresConfig CRD and reference them in your clusters, accordingly.
OnGres, the creators of StackGres are obsessed with tuning Postgres adequately. So much that they have built postgresqlCO.NF, a website that helps hundreds of thousands of Postgres users on how to better tune their database.