vm-check: init

[Kreyren]

Fixes: #148

End Goal: Make all systems testable via VM

[Kreyren]

Shit doesn't work and drives me insane rn..

[Kreyren]

Couldn't make it to work reliably so far:

• Enabling auto-login breaks the whole virtualized OS as it won't be able to transition from initrd to the functioning system for some reason and holds on a blackscreen.
• Deploying impermanent home-manager causes transport point not connected errors (likely fuse related?) Solved
• Trying to change anything in disko.* causes no type option error
• Likely more to come..

Doesn't seem to be a QEMU related, just probably bugs in disko.

CC @Enzime @Lassulus @iFreilicht (disko maintainers) -- Are these issues within the scope of your maintanance of disko or am i on my own here? (i am banned by NixOS Foundation so i can't work on these issues in your upstream unless you will accept patches from me somehow and i don't feel safe at the current nixos community to pursue unban rn)

disko.devices.disk.system.content.partitions.swap.size = mkForce null; # Unset swap partition
disko.devices.disk.system.content.partitions.store.content.passwordFile = mkForce (pkgs.writeText "ignucius-disks-password" "000000").outPath; # Without trying to do this the VM deployment will fail as it can't find the agenix file

error:
       … while calling the 'head' builtin
         at /nix/store/nrwvqc2kgl7zvkhyjwg3cgh2jngs12jz-source/lib/attrsets.nix:1574:11:
         1573|         || pred here (elemAt values 1) (head values) then
         1574|           head values
             |           ^
         1575|         else

       … while evaluating the attribute 'optionalValue.value'
         at /nix/store/nrwvqc2kgl7zvkhyjwg3cgh2jngs12jz-source/lib/modules.nix:863:5:
          862|
          863|     optionalValue =
             |     ^
          864|       if isDefined then { value = mergedValue; }

       … while evaluating the option `virtualisation.vmVariantWithDisko':

       … while evaluating the option `virtualisation.vmVariantWithDisko.disko.devices._config':

       … while evaluating the option `virtualisation.vmVariantWithDisko.disko.devices.disk.system._config':

       … while evaluating the option `virtualisation.vmVariantWithDisko.disko.devices.disk.system.content':

       (stack trace truncated; use '--show-trace' to show the full, detailed trace)

       error: No type option set in:
       {
         partitions = {
           swap = {
             size = {
               _type = "override";
               content = null;
               priority = 50;
             };
           };
         };
       }