diff --git a/.gitignore b/.gitignore
index 13d1490..58a20ca 100644
--- a/.gitignore
+++ b/.gitignore
@@ -84,6 +84,7 @@ ipython_config.py
 
 # pyenv
 .python-version
+.vscode/
 
 # pipenv
 #   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
diff --git a/grnx/models.py b/grnx/models.py
index 6e26f00..986a699 100644
--- a/grnx/models.py
+++ b/grnx/models.py
@@ -1,4 +1,4 @@
-# coding: utf-8
+
 
 import datetime
 import json
@@ -6,7 +6,6 @@ import re
 import os
 import logging
 
-from slugify import slugify
 
 logger = logging.getLogger(__name__)
 
@@ -39,6 +38,19 @@ def json_handler(obj):
         raise TypeError('Object of type %s with value of %s is not JSON serializable' % (type(obj), repr(obj)))
 
 
+def to_json(obj, indent):
+    """Serialize the content of the current structure to JSON format."""
+
+    json_dumps = json.dumps(
+        obj,
+        default=json_handler,
+        sort_keys=True,
+        indent=indent
+    )
+
+    return json_dumps
+
+
 def split(file_path):
     return os.path.normpath(file_path).split(os.sep)
 
@@ -65,8 +77,6 @@ class Article(object):
         if self.slug and self.slug.startswith('-'):
             self.slug = self.slug[1:]
 
-        self.slug = slugify(self.slug)
-
         try:
             self.category = split_path[1]       #
             self.keywords = split_path[2:-1]
@@ -153,26 +163,16 @@ class Site(object):
 
             self.articles.append(article)
 
-            if article.category not in self.categories:
-                self.categories[article.category] = []
-
-            self.categories[article.category].append(article)
+            category = categories.setdefault(article.category, [])
+            category.append(article.slug)
 
         return article
 
-    def to_json(self):
-        """Serialize the content of the current structure to JSON format."""
-
-        json_dumps = json.dumps(
-            self,
-            default=json_handler,
-            sort_keys=True,
-            indent=4
-        )
-        return json_dumps
-
-    def serialize(self):
+    def serialize(self, indent=None):
         """Serialize the current files structure to index.json"""
 
         with open('index.json', 'w') as json_serialized_file:
-            json_serialized_file.write(self.to_json())
+            json_serialized_file.write(to_json(self, indent))
+
+        with open("categories.json", "w") as json_serialized_file:
+            json_serialized_file.write(to_json(self.categories, indent))
diff --git a/main.py b/main.py
new file mode 100644
index 0000000..b60ffeb
--- /dev/null
+++ b/main.py
@@ -0,0 +1,13 @@
+
+from grnx.models import Site
+
+
+from clize import run
+
+
+def generate_static_site(input_folder, output_folder):
+    Site(input_folder)
+
+
+if __name__ == "__main__":
+    run(generate_static_site)