Provision hardware

Download and extract Debian Bullseye netboot installer from the official repository.
Render config files (PXE config, GRUB config, preseed files etc.) from their corresponding templates.
Spin up an PXE environment (DHCP, TFTP and HTTP server) using Docker compose.
Wake machines using WoL to install the OS via PXE. Machines will auto reboot into the finished preseeded OS after the installation is complete.