This commit refactors the hardware configuration in the SGX attic. A new file named `disko.nix` has been added which houses the disk setup previously located on `hardware-configuration.nix`. Additionally, some parameters in `default.nix` have been updated and unneeded configuration settings have been removed.
This commit adds a new email alias to the mailserver configuration. This new addition will allow emails sent to this address to be properly routed and received.