home/default.nix

@@ -29,10 +29,8 @@ in
       # These imports will be scoped under this key so all settings
       # in them will be added to `home-manager.users.${username}`..
       imports = [
-        ./misc
         ./packages
         ./programs
-        ./impermanence
       ];
 
       config = {

home/impermanence/default.nix

@@ -1,29 +0,0 @@
-{
-  lib,
-  osConfig,
-  inputs,
-  ...
-}: let
-  inherit (lib) mkIf;
-  cfg = osConfig.myOptions.system.impermanence.home;
-in {
-  imports = [ inputs.impermanence.nixosModules.home-manager.impermanence ];
-
-  config = mkIf cfg.enable {
-    home.persistence."${cfg.persistentMountPoint}" = {
-      directories = [
-        ".cache/nix"
-        ".cache/nix-index"
-      ] ++ cfg.extraDirectories;
-
-      files = [
-
-      ] ++ cfg.extraFiles;
-
-      # Allow other users (such as root), to access files through the bind
-      # mounted directories listed in `directories`. Useful for `sudo` operations,
-      # Docker, etc. Requires NixOS configuration programs.fuse.userAllowOther = true;
-      allowOther = true;
-    };
-  };
-}

home/misc/dconf.nix

@@ -1,10 +0,0 @@
-{
-  dconf.settings = {
-    # This is like a system-wide dark mode swithc that some apps respect
-    # Equivalent of the following dconf command:
-    # `conf write /org/gnome/desktop/interface/color-scheme "'prefer-dark'"`
-    "org/gnome/desktop/interface" = {
-      color-scheme = "prefer-dark";
-    };
-  };
-}

home/misc/default.nix

@@ -1,5 +0,0 @@
-{
-  imports = [
-    ./dconf.nix
-  ];
-}

hosts/voyager/default.nix

@@ -37,47 +37,7 @@
       sound.enable = true;
       bluetooth.enable = true;
 
-      impermanence = {
-        root = {
-          enable = true;
-
-          # Some people use /nix/persist/system for this, leaving persistent files in /nix subvolume
-          # I much prefer using a standalone subvolume for this though.
-          persistentMountPoint = "/persist";
-
-          extraDirectories = [
-            "/var/log"
-          ];
-        };
-
-        home = {
-          enable = true;
-          persistentMountPoint = "/persist/home";
-          extraDirectories = [
-            "Downloads"
-            "Personal"
-            "Media"
-            "dots"
-
-            ".local/share/gnupg"
-            ".local/share/wakatime"
-            ".local/share/nvim"
-            ".local/state/nvim"
-            ".local/share/zsh"
-            ".local/cargo"
-            ".local/go"
-          ];
-          extraFiles = [
-            ".config/git/git-credentials"
-          ];
-        };
-
-        # Configure automatic root subvolume wiping on boot from initrd
-        autoWipeBtrfs = {
-          enable = true;
-          devices."/dev/disk/by-label/NIXOS-FS".subvolumes = [ "root" ];
-        };
-      };
+      # TODO: Impermanence
     };
 
     device = {

hosts/voyager/hardware-configuration.nix

@@ -34,6 +34,12 @@
       neededForBoot = true;
     };
 
+  fileSystems."/home" =
+    { device = "/dev/disk/by-label/NIXOS-FS";
+      fsType = "btrfs";
+      options = [ "subvol=home" "noatime" "compress=zstd:3" ];
+    };
+
   fileSystems."/data" =
     { device = "/dev/disk/by-label/NIXOS-FS";
       fsType = "btrfs";

options/system/impermanence.nix

@@ -34,47 +34,6 @@ in
           Path to a persistent directory (usually a mount point to a
           standalone partition / subvolume), which will hold the persistent
           system state files.
-
-          This should point to the entire persistent partition, this setup
-          then expects this directory to contain `passwords` and `system` subdirectories.
-        '';
-      };
-    };
-
-    home = {
-      enable = mkEnableOption ''
-        the Impermanence module for persisting important state directories.
-
-        This requires home-manager.
-      '';
-
-      extraFiles = mkOption {
-        default = [];
-        type = types.listOf types.str;
-        example = literalExpression ''[".zshrc"]'';
-        description = ''
-          Additional files in home to link to persistent storage.
-        '';
-      };
-
-      extraDirectories = mkOption {
-        default = [];
-        type = types.listOf types.str;
-        example = literalExpression ''["Downloads"]'';
-        description = ''
-          Additional directories in home to link to persistent storage.
-        '';
-      };
-
-      persistentMountPoint = mkOption {
-        default = "/persist/home";
-        description = ''
-          Path to a persistent directory (usually a mount point to a
-          standalone partition / subvolume), which will hold the persistent
-          system state files.
-
-          This does not expect any subdirectories, all of the persistent home files
-          will be put directly in here. The user should be the owner of this direcotry.
         '';
       };
     };

system/roles/workstation/programs/misc.nix

@@ -16,9 +16,6 @@ in {
 
       # gnome's keyring manager
       seahorse.enable = true;
-
-      # registry for linux (thanks to Gnome)
-      dconf.enable = true;
     };
   };
 }

system/shared/impermanence/root.nix

@@ -32,9 +32,6 @@ in
         "/etc/nixos" # NixOS configuration source
         "/etc/NetworkManager/system-connections" # saved network connections
         "/var/db/sudo" # keeps track of who got the sudo lecture already
-        # "/var/log" # I sometimes use a subvolume for this, added manually if not
-        "/var/lib/nixos"
-        "/var/lib/bluetooth"
         "/var/lib/systemd/coredump" # captured coredumps 
       ] ++ cfg.extraDirectories;