No matter how you like to participate in developer communities, Pulumi wants to meet you there. If you want to meet other Pulumi users to share use-cases and best practices, contribute code or documentation, see us at an event, or just tell a story about something cool you did with Pulumi, you are part of our community.

Pulumi Community

It is. You can self-host the Service, but that requires a commercial license: <https://pulumi.com/pricing|https://pulumi.com/pricing> 

You have additional options to use your own state file storage (any of the 3 major clouds) and secrets provider (any of the 3 major clouds + HashiCorp Vault): <https://www.pulumi.com/docs/intro/concepts/state/>

you can do a self host trial as well if you'd like!
<https://www.pulumi.com/product/self-hosted/#self-hosted-trial>