disko

flake.lock

@@ -1,25 +1,24 @@
 {
   "nodes": {
-    "firefox-addons": {
+    "disko": {
       "inputs": {
         "nixpkgs": [
-          "nixpkgs"
+          "nixpkgs-unstable"
         ]
       },
       "locked": {
-        "dir": "pkgs/firefox-addons",
+        "lastModified": 1768920986,
-        "lastModified": 1771732978,
+        "narHash": "sha256-CNzzBsRhq7gg4BMBuTDObiWDH/rFYHEuDRVOwCcwXw4=",
-        "narHash": "sha256-o7gZh/eXFkEEmzwlBdIbgCJhmdlqQhOhVjudqgsIefg=",
+        "owner": "nix-community",
-        "owner": "rycee",
+        "repo": "disko",
-        "repo": "nur-expressions",
+        "rev": "de5708739256238fb912c62f03988815db89ec9a",
-        "rev": "18226106e18bc40cce99d436ee741a946f1888f6",
+        "type": "github"
-        "type": "gitlab"
       },
       "original": {
-        "dir": "pkgs/firefox-addons",
+        "owner": "nix-community",
-        "owner": "rycee",
+        "ref": "latest",
-        "repo": "nur-expressions",
+        "repo": "disko",
-        "type": "gitlab"
+        "type": "github"
       }
     },
     "home-manager": {
@@ -29,20 +28,39 @@
         ]
       },
       "locked": {
-        "lastModified": 1714043624,
+        "lastModified": 1772020340,
-        "narHash": "sha256-Xn2r0Jv95TswvPlvamCC46wwNo8ALjRCMBJbGykdhcM=",
+        "narHash": "sha256-aqBl3GNpCadMoJ/hVkWTijM1Aeilc278MjM+LA3jK6g=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "86853e31dc1b62c6eeed11c667e8cdd0285d4411",
+        "rev": "36e38ca0d9afe4c55405fdf22179a5212243eecc",
         "type": "github"
       },
       "original": {
         "owner": "nix-community",
-        "ref": "release-23.11",
+        "ref": "release-25.11",
         "repo": "home-manager",
         "type": "github"
       }
     },
+    "impermanence": {
+      "inputs": {
+        "home-manager": [],
+        "nixpkgs": []
+      },
+      "locked": {
+        "lastModified": 1769548169,
+        "narHash": "sha256-03+JxvzmfwRu+5JafM0DLbxgHttOQZkUtDWBmeUkN8Y=",
+        "owner": "nix-community",
+        "repo": "impermanence",
+        "rev": "7b1d382faf603b6d264f58627330f9faa5cba149",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "impermanence",
+        "type": "github"
+      }
+    },
     "nixpkgs": {
       "locked": {
         "lastModified": 1771903837,
@@ -77,8 +95,9 @@
     },
     "root": {
       "inputs": {
-        "firefox-addons": "firefox-addons",
+        "disko": "disko",
         "home-manager": "home-manager",
+        "impermanence": "impermanence",
         "nixpkgs": "nixpkgs",
         "nixpkgs-unstable": "nixpkgs-unstable"
       }

flake.nix

@@ -1,64 +1,81 @@
 {
-  description = "Stationette nix config";
+    description = "Stationette nix config";
 
-  inputs = {
+    inputs = {
-    nixpkgs.url = "github:nixos/nixpkgs/nixos-25.11";
+        nixpkgs.url = "github:nixos/nixpkgs/nixos-25.11";
-    nixpkgs-unstable.url = "github:nixos/nixpkgs/nixos-unstable";
+        nixpkgs-unstable.url = "github:nixos/nixpkgs/nixos-unstable";
-    home-manager.url = "github:nix-community/home-manager/release-23.11";
+        impermanence = {
-    home-manager.inputs.nixpkgs.follows = "nixpkgs";
+            url = "github:nix-community/impermanence";
-    firefox-addons = {
+            inputs.nixpkgs.follows = "";
-      url = "gitlab:rycee/nur-expressions?dir=pkgs/firefox-addons";
+            inputs.home-manager.follows = "";
-      inputs.nixpkgs.follows = "nixpkgs";
+        };
+        home-manager.url = "github:nix-community/home-manager/release-25.11";
+        home-manager.inputs.nixpkgs.follows = "nixpkgs";
+        disko.url = "github:nix-community/disko/latest";
+        disko.inputs.nixpkgs.follows = "nixpkgs-unstable";
+        #firefox-addons = {
+        #  url = "gitlab:rycee/nur-expressions?dir=pkgs/firefox-addons";
+        #  inputs.nixpkgs.follows = "nixpkgs";
+        #};
     };
-  };
 
-  outputs = {
+    outputs = {
-    self,
+        self,
-    nixpkgs,
+        nixpkgs,
-    nixpkgs-unstable,
+        nixpkgs-unstable,
-    home-manager,
+        home-manager,
-    ...
+        impermanence,
-  } @ inputs: let
+        disko,
-    lib = nixpkgs.lib;
+        ...
-    # Supported systems for your flake packages, shell, etc.
+    } @ inputs: let
-    # "aarch64-linux"
+        lib = nixpkgs.lib;
-    # "i686-linux"
+        # Supported systems for your flake packages, shell, etc.
-    # "x86_64-linux"
+        # "aarch64-linux"
-    # "aarch64-darwin"
+        # "i686-linux"
-    # "x86_64-darwin"
+        # "x86_64-linux"
-    system = "x86_64-linux";
+        # "aarch64-darwin"
-    pkgs = nixpkgs.legacyPackages.${system};
+        # "x86_64-darwin"
-    pkgs-unstable = nixpkgs-unstable.legacyPackages.${system};
+        system = "x86_64-linux";
-  in {
+        pkgs = nixpkgs.legacyPackages.${system};
+        pkgs-unstable = nixpkgs-unstable.legacyPackages.${system};
+    in {
     # NixOS configuration entrypoint
     # Available through 'nixos-rebuild --flake .#stationette'
-    nixosConfigurations = {
+        nixosConfigurations = {
-      stationette = nixpkgs.lib.nixosSystem {
+            stationette = nixpkgs.lib.nixosSystem {
-        modules = [
+                modules = [
-          ./system/configuration.nix
+                    ./system/configuration.nix
-          #home-manager.nixosModules.home-manager {
+                    disko.nixModules.disko
-          #  home-manager.users.chris = import ./home;
+                    import ./system/disko.nix
-          #  home-manager.extraSpecialArgs = {
+                    {
-          #    inherit pkgs-unstable;
+                        imports = [
-          #    inherit inputs;
+                            impermanence.nixModules.impermanence
-          #  };
+                            home-manager.nixModules.home-manager
-          #}
+                        ];
-        ];
+                        home-manager = {
-      };
+                            users.chris = import ./home;
-    };
+                            extraSpecialArgs = {
-
+                                inherit pkgs-unstable;
-    # Standalone home-manager configuration entrypoint
+                                inherit inputs;
-    homeConfigurations = {
+                            };
-      chris = home-manager.lib.homeManagerConfiguration {
+                        };
-        inherit pkgs;
+                    }
-        extraSpecialArgs = {
+                ];
-          inherit pkgs-unstable;
+            };
-          inherit inputs;
+        };
+
+        # Standalone home-manager configuration entrypoint
+        homeConfigurations = {
+            chris = home-manager.lib.homeManagerConfiguration {
+                inherit pkgs;
+                extraSpecialArgs = {
+                    inherit pkgs-unstable;
+                    inherit inputs;
+                };
+                modules = [
+                    ./home
+                ];
+            };
         };
-        modules = [
-          ./home
-        ];
-      };
     };
-  };
 }

home/default.nix

@@ -7,6 +7,7 @@
   ...
 }: {
   imports = [
+    inputs.impermanence.nixosModules.home-manager.impermanence
     ./user
   ];
 

home/user/impermanence.nix

@@ -0,0 +1,12 @@
+{
+    home.persistenec."/persist/home/chris" = {
+        directories = [
+            "Downloads"
+            "Tower"
+            ".config/dotfiles"
+            ".local/share/direnv"
+            ".ssh"
+        ];
+        "allowOther" = true;
+    };
+}

system/disko.nix

@@ -0,0 +1,48 @@
+# nix --extra-experimental-features "nix-command flakes" run github:nix-community/disko -- --mode disko ./disko.nix
+{
+    disko.devices = {
+        disk = {
+            stationette = {
+                type = "disk";
+                device = "/dev/sda"; # Check this with lsblk
+                content = {
+	                type = "gpt";
+                    partitions = {
+                        ESP = {
+                            size = "512M";
+                            type = "EFOO";
+                            content = {
+                                type = "filesystem";
+                                format = "vfat";
+                                mountpoint = "/boot";
+                            };
+                        };
+                        root = {
+                            size = "100%";
+                            type = "btfs";
+                            extraArgs = [ "-f" ]; # Force overwrite
+                            subvolumes = {
+                                "/root" = {
+                                    mountpoint = "/";
+                                    mountOptions = [ "compress=zstd" "noatime" ];
+                                };
+                                "/nix" = {
+                                    mountpoint = "/nix";
+                                    mountOptions = [ "compress=zstd" "noatime" ];
+                                };
+                                "/persist" = {
+                                    mountpoint = "/persist";
+                                    mountOptions = [ "compress=zstd" "noatime" ];
+                                };
+                                "/swap" = {
+                                    mountpoint = "/.swapvol";
+                                    swap.swapfile.size = "8G";
+                                };
+                            };
+                        };
+                    };
+                };
+            };
+        };
+    };
+}

system/modules/boot.nix

@@ -1,13 +1,34 @@
 { config, pkgs, lib, ... }:
 
 {
-  boot = {
+    boot = {
-    #kernelParams = ["nohibernate" "ipv6.disable=1"];
+        loader = {
-    #tmp.cleanOnBoot = true;
+            systemd-boot.enable = true;
-    # supportedFilesystems = ["ntfs"];
+            efi.canTouchEfiVariables = true;
-    loader = {
+        };
-      systemd-boot.enable = true;
+        initrd.postDeviceCommands = lib.mkAfter ''
-      efi.canTouchEfiVariables = true;
+            mkdir /btrfs_tmp
+            mount /dev/disk/by-label/NIXOS /btrfs_tmp
+            if [[ -e /btrfs_tmp/root ]]; then
+                mkdir -p /btrfs_tmp/old_roots
+                timestamp=$(dat +%Y-%m-%d_%H-%M-%S)
+                mv /btrfs_tmp/root "/btrfs_tmp/old_roots/$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
+        '';
     };
-  };
 }

system/modules/impermanenc.nix

@@ -0,0 +1,14 @@
+{
+    environment.persistence."/persist" = {
+        hideMounts = true;
+        directories = [
+            "/var/log"
+            "/var/lib/bluetooth"
+            "/var/lib/networkmanager"
+            "/etc/ssh"
+        ];
+        files = [
+            "/etc/machine-id"
+        ]
+    };
+}