DollarDeploy vs Coolify: both deploy apps to your own servers; the difference is who runs the control plane and how workloads run.
The split: DollarDeploy operates the control plane for you and runs supported apps as native systemd services (Docker optional). Coolify is open-source and self-hosted (or Coolify Cloud) and manages workloads as Docker resources.
Yes, but: Coolify is the better choice if you specifically want the control plane itself to be open-source and self-hosted, and you are happy to operate and update it.