update

flake.nix

@@ -23,7 +23,7 @@
 
   inputs = {
     nixpkgs.url = "nixpkgs/nixos-23.05";
-    #impermanence.url = "github:nix-community/impermanence";
+    impermanence.url = "github:nix-community/impermanence";
   };
 
   outputs = { self, nixpkgs, ... }: {
@@ -39,7 +39,7 @@
 
       modules = [
         ./configuration.nix
-        #impermanence.nixosModules.impermanence
+        impermanence.nixosModules.impermanence
       ];
     };
   };

global/default.nix

@@ -4,6 +4,6 @@
     ./software-configuration.nix
     ./user-configuration.nix
     ./containers.nix
-    #./stateless-configuration.nix
+    ./stateless-configuration.nix
   ];
 }

hardware-configuration.nix

@@ -4,17 +4,35 @@
 { config, lib, pkgs, modulesPath, ... }:
 
 {
-  imports = [
-    (modulesPath + "/installer/scan/not-detected.nix")
-  ];
+  imports = [ ];
 
-  boot.initrd.availableKernelModules = [ ];
-  boot.initrd.kernelModules = [ ];
-  boot.kernelModules = [ ];
-  boot.extraModulePackages = [ ];
-  boot.loader.grub.devices = [ "nodev" ];
+  boot = {
+    cleanTmpDir = true;
+    kernelModules = [ "cma=256M" ];
+    extraModulePackages = [ ];
 
-  fileSystems."/" = {
+    loader = {
+      grub = {
+        device = "nodev";
+        enable = false;
+      };
+
+      raspberryPi = {
+        enable = true;
+        version = 3;
+        firmwareConfig = ''
+          gpu_mem=256
+        '';
+
+        uboot = {
+          enable = true;
+          configurationLimit = 10;
+        };
+      };
+    };
+  };
+
+  fileSystems."/nix" = {
     device = "/dev/disk/by-uuid/44444444-4444-4444-8888-888888888888";
     fsType = "ext4";
   };