$ brew install node pulumi sshuttle google-cloud-sdk
$ npm i
$ gcloud auth application-default login
$ npm run infra-upEdit gcp:zone in Pulumi.prod.yaml to connect from another location.
See f1-micro section in https://cloud.google.com/compute/all-pricing#sharedcore for a list of available regions.
You'll still need to pick a zone, which can be obtained while manually creating an instance from https://console.cloud.google.com/compute/instancesAdd
$ bin/vpn$ npm run infra-down