From looking at the build.sh script in the template repository, "fedora-docs/template", if on a Linux OS it needs either a Podman or Docker installation. As @pbokoc said we suggest Podman for these Linux OS users. However if a user is on macOS the script requires a Docker installation. I clarified this on any instance we mention tools Docker or Podman in this repo.
From looking at the build.sh script in the template repository, "fedora-docs/template", if on a Linux OS it needs either a Podman or Docker installation. As @pbokoc said we suggest Podman for these Linux OS users. However if a user is on macOS the script requires a Docker installation. I clarified this on any instance we mention tools Docker or Podman in this repo.