refactor: change to litterate config

Configuration is now held by the `.org` files. All `.nix` files are
tangled from the org-mode files.

modules/boot/loader.nix

@@ -7,39 +7,25 @@
     with lib; let
       cfg = config.mySystem.boot;
     in {
-      options.mySystem.boot = {
-        systemd-boot = mkOption {
-          type = types.bool;
-          default = !cfg.grub.enable;
-          description = "Does the system use systemd-boot?";
-        };
-        grub = {
-          enable = mkEnableOption "Does the system use GRUB? (Disables systemd-boot)";
-          device = mkOption {
-            type = types.path;
-            description = "The GRUB device";
-            default = "";
-          };
-        };
-        zfs = {
-          enable = mkEnableOption "Enables ZFS";
-          pools = mkOption {
-            type = types.listOf types.str;
-            default = [];
-          };
+      options.mySystem.boot.systemd-boot = mkOption {
+        type = types.bool;
+        default = !cfg.grub.enable;
+        description = "Does the system use systemd-boot?";
+      };
+      options.mySystem.boot.grub = {
+        enable = mkEnableOption "Does the system use GRUB? (Disables systemd-boot)";
+        device = mkOption {
+          type = types.path;
+          description = "The GRUB device";
         };
       };
 
-      config.boot = {
-        loader = {
-          systemd-boot.enable = cfg.systemd-boot;
-          efi.canTouchEfiVariables = cfg.systemd-boot;
-          grub = mkIf cfg.grub.enable {
-            inherit (cfg.grub) enable device;
-          };
-        };
-        supportedFilesystems = mkIf cfg.zfs.enable ["zfs"];
-        zfs.extraPools = mkIf cfg.zfs.enable cfg.zfs.pools;
+      config.boot.loader = {
+        systemd-boot.enable = cfg.systemd-boot;
+        efi.canTouchEfiVariables = cfg.systemd-boot;
+      };
+      config.boot.loader.grub = mkIf cfg.grub.enable {
+        inherit (cfg.grub) enable device;
       };
     };
 }