refactor: automatic options for overlays, fix build

nixosConfigurations/aur0ra/hardware.nix

@@ -10,11 +10,9 @@
   # No one got time for xz compression.
   #isoImage.squashfsCompression = "zstd";
 
-  boot.loader = {
-    raspberry-pi.bootloader = "kernel";
-    systemd-boot.enable = lib.mkForce false;
-    #generic-extlinux-compatible.enable = lib.mkForce false;
-  };
+  boot.loader.raspberry-pi.bootloader = "kernel";
+
+  my.systemdBoot.enable = lib.mkForce false;
 
   /*
     fileSystems = {

nixosConfigurations/damocles/claude-container.nix

@@ -1,12 +1,11 @@
 {
   pkgs,
-  self,
   lib,
   ...
 }:
 {
 
-  nixpkgs.overlays = [ self.overlays.unstable-packages ];
+  my.overlays.unstable.enable = true;
   allowedUnfreePackages = [ "claude-code" ];
 
   environment.systemPackages = with pkgs; [

nixosConfigurations/epimetheus/default.nix

@@ -1,6 +1,13 @@
-{ ... }:
+{ modulesPath, ... }:
 {
+  imports = [ (modulesPath + "/virtualisation/proxmox-lxc.nix") ];
+
   config = {
     my.pxvirtGuest.enable = true;
+
+    proxmoxLXC = {
+      manageNetwork = false;
+      privileged = false;
+    };
   };
 }