Add persistance and incus

modules/common.nix

@@ -7,5 +7,6 @@
     ./common/services.nix
     ./common/networking.nix
     ./common/system.nix
+    ./common/persisting.nix
   ];
 }

modules/common/incus.nix

@@ -0,0 +1,77 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+{
+  virtualisation = {
+    # GPU virtualisation (Intel GVT-g)
+    kvmgt.enable = true;
+    # Incus (Virtual Machine and System Container management)
+    incus = {
+      enable = true;
+      ui.enable = true;
+      package = pkgs.incus-lts; # use 'pkgs.incus' for feature releases
+      preseed = {
+        networks = [
+          {
+            name = "internalbr0";
+            type = "bridge";
+            description = "Internal/NATted bridge";
+            config = {
+              "ipv4.address" = "auto";
+              "ipv4.nat" = "true";
+              "ipv6.address" = "auto";
+              "ipv6.nat" = "true";
+            };
+          }
+        ];
+        profiles = [
+          {
+            name = "default";
+            description = "Default Incus Profile";
+            devices = {
+              eth0 = {
+                name = "eth0";
+                network = "internalbr0";
+                type = "nic";
+              };
+              root = {
+                path = "/";
+                pool = "default";
+                type = "disk";
+              };
+            };
+          }
+          {
+            name = "bridged";
+            description = "Instances bridged to LAN";
+            devices = {
+              eth0 = {
+                name = "eth0";
+                nictype = "bridged";
+                parent = "externalbr0";
+                type = "nic";
+              };
+              root = {
+                path = "/";
+                pool = "default";
+                type = "disk";
+              };
+            };
+          }
+        ];
+        storage_pools = [
+          {
+            config = {
+              source = "/var/lib/incus/storage-pools/default";
+            };
+            driver = "dir";
+            name = "default";
+          }
+        ];
+      };
+    };
+  };
+}

modules/common/persisting.nix

@@ -0,0 +1,31 @@
+{ config, lib, pkgs, ... }:
+
+{
+  persisting = {
+    enable = true;
+    
+    # Default directories to persist
+    directories = [
+      {
+        path = "/persist";
+        target = "/persist";
+        options = [ "defaults" "bind" ];
+      }
+      {
+        path = "/var/log";
+        target = "/var/log";
+        options = [ "defaults" "bind" ];
+      }
+      {
+        path = "/var/lib";
+        target = "/var/lib";
+        options = [ "defaults" "bind" ];
+      }
+    ];
+  };
+  
+  # Ensure persist directory exists
+  systemd.tmpfiles.rules = [
+    "d /persist 0755 root root - -"
+  ];
+}