System

Once the infrastructure exists, this is what actually turns a bare instance into a running platform: get in over SSH, prepare the disk Terraform only attached but didn't format, then install the tooling that runs everything else.

Basics — SSH in, then format and mount the data volume Terraform attached but left raw.

Coolify — installing the deployment platform itself: the baseline install, then either a genuinely fresh install or a migration restoring from an old server.