bug fixes

flake.nix

@@ -33,7 +33,7 @@
     stylix,
     ...
   }: let
-    laptop = import ./machines/laptop.nix;
+    laptop = import ./machines/laptop/machine.nix;
   in {
     nixosConfigurations.${laptop.hostname} = nixpkgs.lib.nixosSystem {
       system = laptop.system;
@@ -66,7 +66,7 @@
         impermanence.nixosModules.impermanence
         noshell.nixosModules.default
         ./configuration.nix
-        ./hardware-configuration.nix
+        laptop.hardware-configuration
       ];
     };
   };

hardware-configuration.nix

@@ -1,41 +0,0 @@
-# Do not modify this file!  It was generated by ‘nixos-generate-config’
-# and may be overwritten by future invocations.  Please make changes
-# to /etc/nixos/configuration.nix instead.
-{
-  config,
-  lib,
-  pkgs,
-  modulesPath,
-  ...
-}: {
-  imports = [
-    (modulesPath + "/installer/scan/not-detected.nix")
-  ];
-
-  boot.initrd.availableKernelModules = ["xhci_pci" "nvme" "sdhci_pci"];
-  boot.initrd.kernelModules = [];
-  boot.kernelModules = ["kvm-intel"];
-  boot.extraModulePackages = [];
-
-  fileSystems."/" = {
-    device = "none";
-    fsType = "tmpfs";
-    options = ["defaults" "size=25%" "mode=755"];
-  };
-
-  fileSystems."/nix" = {
-    device = "/dev/disk/by-uuid/0e586651-36f4-42b0-99b3-3f0704a894d6";
-    fsType = "btrfs";
-  };
-
-  fileSystems."/boot" = {
-    device = "/dev/disk/by-uuid/F425-55BA";
-    fsType = "vfat";
-    options = ["fmask=0022" "dmask=0022"];
-  };
-
-  swapDevices = [];
-
-  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
-  hardware.cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
-}

machines/laptop/hardware-configuration.nix

@@ -0,0 +1,69 @@
+# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# and may be overwritten by future invocations.  Please make changes
+# to /etc/nixos/configuration.nix instead.
+{
+  config,
+  lib,
+  pkgs,
+  modulesPath,
+  ...
+}: {
+  imports = [
+    (modulesPath + "/installer/scan/not-detected.nix")
+  ];
+
+  boot.initrd.availableKernelModules = ["xhci_pci" "nvme" "sdhci_pci"];
+  boot.initrd.kernelModules = [];
+  boot.kernelModules = ["kvm-intel"];
+  boot.extraModulePackages = [];
+
+  fileSystems."/" = {
+    #device = "none";
+    #fsType = "tmpfs";
+    #options = ["defaults" "size=60%" "mode=755"];
+    device = "/dev/disk/by-uuid/16c93673-4f0e-4010-a7f4-7ccffb20edb7";
+    fsType = "btrfs";
+    options = ["subvol=root"];
+  };
+
+  boot.initrd.postResumeCommands = lib.mkAfter ''
+    mkdir /btrfs_tmp
+    mount ${config.fileSystems."/".device} /btrfs_tmp
+    if [[ -e /btrfs_tmp/root ]]; then
+      mkdir -p /btrfs_tmp/old_roots
+      timestamp=$(date --date="@$(stat -c %Y /btrfs_tmp/root)" "+%Y-%m-%-d_%H:$M:%S")
+      mv /btrfs_tmp/root "/btrfs_tmp/old_roots/$timestamp"
+    fi
+
+    delete_subvolume_recursively() {
+      IFS=$'\n'
+      for i in $(btrfs subvolume list -o "$1" | cut -f 9- -d ' '); do
+        delete_subvolume_recursively "/btrfs_tmp/$i"
+      done
+      btrfs subvolume delete "$1"
+    }
+
+    for i in $(find /btrfs_tmp/old_roots/ -maxdepth 1 -mtime +30); do
+      delete_subvolume_recursively "$i"
+    done
+
+    btrfs subvolume create /btrfs_tmp/root
+    umount /btrfs_tmp
+  '';
+
+  fileSystems."/nix" = {
+    device = "/dev/disk/by-uuid/0e586651-36f4-42b0-99b3-3f0704a894d6";
+    fsType = "btrfs";
+  };
+
+  fileSystems."/boot" = {
+    device = "/dev/disk/by-uuid/F425-55BA";
+    fsType = "vfat";
+    options = ["fmask=0022" "dmask=0022"];
+  };
+
+  swapDevices = [];
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+  hardware.cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
+}

machines/laptop/machine.nix

@@ -2,4 +2,5 @@
   hostname = "lenovo";
   usernames = ["andromeda"];
   system = "x86_64-linux";
+  hardware-configuration = ./hardware-configuration.nix;
 }

users/andromeda/home.nix

@@ -111,7 +111,7 @@ in {
       pkgs.tree
       pkgs.zoxide
     ];
-    file.${background-path}.source = pkgs.nixos-artwork.wallpapers.gear;
+    file.${background-path}.source = config.stylix.image;
   };
   programs = {
     alacritty.enable = true;

users/andromeda/stylix.nix

@@ -10,6 +10,7 @@
     # silk-light is light theme
     base16Scheme = "${pkgs.base16-schemes}/share/themes/gruvbox-material-dark-hard.yaml";
     polarity = "dark";
+    image = "${pkgs.nixos-artwork.wallpapers.gear}/share/backgrounds/nixos/nix-wallpaper-gear.png";
     fonts = {
       monospace = {
         package = pkgs.miracode;