Platform engineering is the discipline of designing and building toolchains and workflows that enable self-service capabilities for software engineering organizations in the cloud-native era.

Platform Engineering

We self-host Backstage but also evaluated Lyft's <https://clutch.sh/>

Look us up. <https://www.facets.cloud/|https://www.facets.cloud/>. It can be hosted in your cloud as well. 

out of curiosity does this replace IaC tools like Terraform or CDK? Or does it integrate with those tools?

No. These are developer portals providing views or single panes of glass to running services

<@U04H1LY5QSC> of course I'm partial but if you want to give it a look, <http://mia-platform.eu|mia-platform.eu> can be fully self-hosted or SaaS ("bring your own infrastructure")