Atlantis is a service developers use to apply Terraform plans from pull requests. Atlantis needs to run somewhere before it can start applying Terraform changes from your PRs and this post describes how to get Atlantis running on Google’s Cloud Run.

Higher-kinded data (HKD) takes your existing data classes and wraps each field in a higher-kinded type, allowing you to do some funky things. I have recently seen a few presentations of this which piqued my interest sufficiently to try it out for myself.