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

Yes - S3, Azure Storage, and GCS will all be supported as part of <https://github.com/pulumi/pulumi/issues/1966>.  There's been progress on Azure support in PR and we'll build on top of that for the others.

Is there a comparison of differences or what will be lacking in comparison to <http://app.pulumi.com|app.pulumi.com> service?

E.g. would it support atomic operations/locking of the remote state (similarly to terraform remote state)?

Not yet - this support is still in design phase.