At incident.io, they use infrastructure as code to configure everything from Google Cloud Platform to Spacelift and even their own product, incident.io. New engineers start by making a PR to the infrastructure repo on their first day, which sets up their account, team, and development environment. The process automatically configures resources in Google Cloud Platform based on the user's role and team assignments. Additionally, incident.io uses Terraform for its catalog product, allowing it to be configured via code. The company promotes best practice of configuring all products, including itself, in the same way as other products, making onboarding simple and efficient.