refactor

modules/nixos/system/boot/default.nix

@@ -0,0 +1,24 @@
+{ options
+, config
+, pkgs
+, lib
+, ...
+}:
+with lib;
+with lib.plusultra; let
+  cfg = config.plusultra.system.boot;
+in
+{
+  options.plusultra.system.boot = with types; {
+    enable = mkBoolOpt false "Whether or not to enable booting.";
+  };
+
+  config = mkIf cfg.enable {
+    boot.loader.systemd-boot.enable = true;
+    boot.loader.systemd-boot.configurationLimit = 10;
+    boot.loader.efi.canTouchEfiVariables = true;
+
+    # https://github.com/NixOS/nixpkgs/blob/c32c39d6f3b1fe6514598fa40ad2cf9ce22c3fb7/nixos/modules/system/boot/loader/systemd-boot/systemd-boot.nix#L66
+    boot.loader.systemd-boot.editor = false;
+  };
+}

modules/nixos/system/env/default.nix

@@ -0,0 +1,39 @@
+{ options, config, pkgs, lib, ... }:
+
+with lib;
+with lib.plusultra;
+let cfg = config.plusultra.system.env;
+in
+{
+  options.plusultra.system.env = with types;
+    mkOption {
+      type = attrsOf (oneOf [ str path (listOf (either str path)) ]);
+      apply = mapAttrs (n: v:
+        if isList v then
+          concatMapStringsSep ":" (x: toString x) v
+        else
+          (toString v));
+      default = { };
+      description = "A set of environment variables to set.";
+    };
+
+  config = {
+    environment = {
+      sessionVariables = {
+        XDG_CACHE_HOME = "$HOME/.cache";
+        XDG_CONFIG_HOME = "$HOME/.config";
+        XDG_DATA_HOME = "$HOME/.local/share";
+        XDG_BIN_HOME = "$HOME/.local/bin";
+        # To prevent firefox from creating ~/Desktop.
+        XDG_DESKTOP_DIR = "$HOME";
+      };
+      variables = {
+        # Make some programs "XDG" compliant.
+        LESSHISTFILE = "$XDG_CACHE_HOME/less.history";
+        WGETRC = "$XDG_CONFIG_HOME/wgetrc";
+      };
+      extraInit = concatStringsSep "\n"
+        (mapAttrsToList (n: v: ''export ${n}="${v}"'') cfg);
+    };
+  };
+}

modules/nixos/system/fonts/default.nix

@@ -0,0 +1,35 @@
+{ options
+, config
+, pkgs
+, lib
+, ...
+}:
+with lib;
+with lib.plusultra; let
+  cfg = config.plusultra.system.fonts;
+in
+{
+  options.plusultra.system.fonts = with types; {
+    enable = mkBoolOpt false "Whether or not to manage fonts.";
+    fonts = mkOpt (listOf package) [ ] "Custom font packages to install.";
+  };
+
+  config = mkIf cfg.enable {
+    environment.variables = {
+      # Enable icons in tooling since we have nerdfonts.
+      LOG_ICONS = "true";
+    };
+
+    environment.systemPackages = with pkgs; [ font-manager ];
+
+    fonts.packages = with pkgs;
+      [
+        noto-fonts
+        noto-fonts-cjk-sans
+        noto-fonts-cjk-serif
+        noto-fonts-emoji
+        (nerdfonts.override { fonts = [ "Hack" ]; })
+      ]
+      ++ cfg.fonts;
+  };
+}

modules/nixos/system/locale/default.nix

@@ -0,0 +1,17 @@
+{ options, config, pkgs, lib, ... }:
+
+with lib;
+with lib.plusultra;
+let cfg = config.plusultra.system.locale;
+in
+{
+  options.plusultra.system.locale = with types; {
+    enable = mkBoolOpt false "Whether or not to manage locale settings.";
+  };
+
+  config = mkIf cfg.enable {
+    i18n.defaultLocale = "en_US.UTF-8";
+
+    console = { keyMap = mkForce "us"; };
+  };
+}

modules/nixos/system/time/default.nix

@@ -0,0 +1,14 @@
+{ options, config, pkgs, lib, ... }:
+
+with lib;
+with lib.plusultra;
+let cfg = config.plusultra.system.time;
+in
+{
+  options.plusultra.system.time = with types; {
+    enable =
+      mkBoolOpt false "Whether or not to configure timezone information.";
+  };
+
+  config = mkIf cfg.enable { time.timeZone = "America/Los_Angeles"; };
+}

modules/nixos/system/xkb/default.nix

@@ -0,0 +1,19 @@
+{ options, config, lib, ... }:
+
+with lib;
+with lib.plusultra;
+let cfg = config.plusultra.system.xkb;
+in
+{
+  options.plusultra.system.xkb = with types; {
+    enable = mkBoolOpt false "Whether or not to configure xkb.";
+  };
+
+  config = mkIf cfg.enable {
+    console.useXkbConfig = true;
+    services.xserver = {
+      layout = "us";
+      xkbOptions = "caps:escape";
+    };
+  };
+}

modules/nixos/system/zfs/default.nix

@@ -0,0 +1,47 @@
+{ config, lib, ... }:
+
+let
+  cfg = config.plusultra.system.zfs;
+
+  inherit (lib) mkEnableOption mkIf mkDefault;
+  inherit (lib.plusultra) mkOpt enabled;
+  inherit (lib.types) listOf str;
+in
+{
+  options.plusultra.system.zfs = {
+    enable = mkEnableOption "ZFS support";
+
+    pools = mkOpt (listOf str) [ "rpool" ] "The ZFS pools to manage.";
+
+    auto-snapshot = {
+      enable = mkEnableOption "ZFS auto snapshotting";
+    };
+  };
+
+  config = mkIf cfg.enable {
+    boot.kernelPackages = config.boot.zfs.package.latestCompatibleLinuxPackages;
+
+    services.zfs = {
+      autoScrub = {
+        enable = true;
+        pools = cfg.pools;
+      };
+
+      autoSnapshot = mkIf cfg.auto-snapshot.enable {
+        enable = true;
+        flags = "-k -p --utc";
+        weekly = mkDefault 3;
+        daily = mkDefault 3;
+        hourly = mkDefault 0;
+        frequent = mkDefault 0;
+        monthly = mkDefault 2;
+      };
+    };
+
+    plusultra = {
+      tools = {
+        icehouse = enabled;
+      };
+    };
+  };
+}