one of the founders here. This is helpful to know! we need to work on clarifying positioning it seems.

The idea is to facilitate ci/cd for Terraform without a dedicated ci/cd stack. Tools like Atlantis or Spacelift are effectively alternative CI systems with compute, orchestration, UI for logs etc. Why not reuse the infrastructure of your existing CI system for that? So that terraform binary runs in managed compute just like any other ci/cd job. To achieve that we've built a thin wrapper atop terraform that reads config from your repo and manages locks in your cloud account. This way you don't need any manual trickery to set up ci/cd for terraform; it's just a drop-in Github Action.