Refactor codebase to use nix modules

hmModules/services/wal/default.nix

@@ -0,0 +1,34 @@
+{ config, pkgs, lib, ... }:
+let rootPath = ./.; in
+{
+  options.colors = {
+    enable = lib.mkEnableOption "Enables setting colors using wallust";
+  };
+
+  config = lib.mkIf config.colors.enable {
+    home.packages = with pkgs; [
+      wallust # A better pywal
+      pywalfox-native # Update librewolf's colorscheme based on wal
+    ];
+    xdg.configFile."wallust-config" = {
+      target = "wallust/wallust.toml";
+      text = ''
+        backend = "wal"
+        color_space = "lab"
+        threshold = 20
+        filter = "dark16"
+
+        # [[entry]]
+        # # a relative path to a file where wallust.toml is (~/.config/wallust/)
+        # template = "dunstrc"
+        #
+        # # absolute path to the file to write the template (after templating)
+        # target = "~/.config/dunst/dunstrc"
+      '';
+    };
+    #xdg.configFile."wallust-templates" = {
+    #  source = rootPath + "/templates";
+    #  target = "wallust/";
+    #};
+  };
+}