I've seen a couple of these, and I think much of the problem is that I need to duplicate my ops work (scripts to build environments, etc.) somehow for the ephemeral environments to be created. You've evaded that somewhat by using Terraform, but what if I use CloudFormation to deploy my stuff?

I'm wondering if the better way to solve this problem would be to use docker-compose files (or k8s definitions), since we all have them checked in already for use with local development. I really just need a way to fire the local environment up on a server so I can send someone a link to it that will work for a while (and not die when I close my laptop). I don't need the full onslaught of AWS (or GCP services) when I just want to send someone a link and ask them if this CSS looks right (or put the link in a PR), but I need it to work better than a picture.