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Pulumi Community

I've been told that community / open-source version of pulumi is only single user... Can someone explain that?

The open-source tool can be used by any number of users. The community tier of the service which provides state storage, history, etc. is limited to a single user -  <https://www.pulumi.com/pricing/#community-edition>.

Note: you can use the open-source tool without the service entirely, you just need to take care to store the state file yourself. <https://www.pulumi.com/docs/troubleshooting/faq/#can-i-use-pulumi-without-depending-on-pulumi-com>

<@UDEJ1F5SQ> is there an overview of what would be missing if we didn't use the service but just the open source tool?
Can we still use encrypted settings for example?

I don't think we have a page that lists it in that manner, no. Encrypted secrets are available in open-source - using a passphrase or one of the external encryption providers. <https://www.pulumi.com/docs/intro/concepts/config/#initializing-a-stack-with-alternative-encryption>