Download and install Pulumi for your platform:
brew install pulumi/tap/pulumicurl -fsSL https://get.pulumi.com | shwinget install --exact --id Pulumi.PulumiOnce installed, you can run pulumi new in an empty folder to create a new project:
mkdir my-project && cd my-projectpulumi newmkdir my-project; cd my-projectpulumi new