diff --git a/app/config.py b/app/config.py
new file mode 100644
index 0000000..14f1c16
--- /dev/null
+++ b/app/config.py
@@ -0,0 +1,64 @@
+import os
+
+import yaml
+from pydantic import BaseSettings, BaseModel
+
+
+def yaml_config_settings_source(settings: BaseSettings):
+    """
+    Custom settings source that reads the settings from a YAML file.
+    """
+    path = os.getenv("CONFIG_PATH", "config.yaml")
+    with open(path, "r") as fh:
+        return yaml.safe_load(fh)
+
+
+class ConverterOptions(BaseModel):
+    """
+    Converter options.
+
+    Attributes
+    ----------
+    author_rewrite : str
+        Will rewrite the author to this value for all the posts.
+    links_rewrite : list[dict]
+        Will rewrite the links to this value for all the posts.
+    """
+
+    author_rewrite: str
+    links_rewrite: list[dict]
+
+
+class Configurator(BaseSettings):
+    """
+    Configurator class for the app.
+
+    Attributes
+    ----------
+    logging_level: str
+        The logging level.
+    source_path : str
+        The path to the Jekyll posts.
+    output_path : str
+        The path to the Hugo posts.
+    converter : str
+        The converter that converts the markdown
+    """
+
+    logging_level: str = "INFO"
+    source_path: str
+    output_path: str
+    converter: str
+    converter_options: ConverterOptions
+
+    class Config:
+        env_file_encoding = "utf-8"
+
+        @classmethod
+        def customise_sources(
+            cls,
+            init_settings,
+            env_settings,
+            file_secret_settings,
+        ):
+            return (yaml_config_settings_source,)
diff --git a/app/converter/__init__.py b/app/converter/__init__.py
index a679a33..08ced26 100644
--- a/app/converter/__init__.py
+++ b/app/converter/__init__.py
@@ -1,2 +1,2 @@
-from converter import Converter
-from wordpress_markdown import WordpressMarkdownConverter
+from .converter import Converter
+from .wordpress_markdown import WordpressMarkdownConverter
diff --git a/app/converter/converter.py b/app/converter/converter.py
index 0d04ab0..4f0e608 100644
--- a/app/converter/converter.py
+++ b/app/converter/converter.py
@@ -1,7 +1,9 @@
+import logging
 import os
 from pathlib import Path
 
 from app import utils
+from app.config import Configurator
 from app.converter.wordpress_markdown import WordpressMarkdownConverter
 
 
@@ -10,25 +12,28 @@ class Converter:
     Convert Jekyll posts to Hugo posts
     """
 
-    def __init__(self, jekyll_posts_path: str, hugo_posts_path: str):
+    def __init__(self, configurator: Configurator):
         """
         Initializes the converter
 
         Parameters
         ----------
-        jekyll_posts_path : str
-            The path to the Jekyll posts
-        hugo_posts_path : str
-            The path to the Hugo posts
+        configurator : Configurator
+            The configurator instance.
         """
-        utils.guard_against_none_or_empty_str(jekyll_posts_path, "jekyll_posts_path")
-        utils.guard_against_none_or_empty_str(hugo_posts_path, "hugo_posts_path")
+        utils.guard_against_none(configurator, "configurator")
 
-        self._jekyll_posts_path = jekyll_posts_path
-        self._hugo_posts_path = hugo_posts_path
+        self._logger = logging.getLogger(__name__)
+
+        self._jekyll_posts_path = configurator.source_path
+        self._hugo_posts_path = configurator.output_path
+
+        self._logger.info(
+            f"Using source: {self._jekyll_posts_path} output: {self._hugo_posts_path}"
+        )
 
         # The converter that converts the markdown
-        self.markdown_converter = WordpressMarkdownConverter()
+        self.markdown_converter = WordpressMarkdownConverter(configurator)
 
     def convert(self):
         """
diff --git a/app/converter/wordpress_markdown.py b/app/converter/wordpress_markdown.py
index 76b366e..5cb989e 100644
--- a/app/converter/wordpress_markdown.py
+++ b/app/converter/wordpress_markdown.py
@@ -3,6 +3,8 @@ from pathlib import Path
 import yaml
 from bs4 import BeautifulSoup, Tag
 
+from app import utils
+from app.config import Configurator
 from app.utils import key_error_silence
 
 
@@ -11,6 +13,18 @@ class WordpressMarkdownConverter:
     Markdown converter that converts jekyll posts to hugo posts.
     """
 
+    def __init__(self, configurator: Configurator):
+        """
+        Initializes the WordpressMarkdownConverter
+
+        Parameters
+        ----------
+        configurator : Configurator
+            The configurator instance.
+        """
+        utils.guard_against_none(configurator, "configurator")
+        self.configurator = configurator
+
     def fix_hugo_header(self, header: dict) -> dict:
         """
         Fix the Hugo header
@@ -34,7 +48,7 @@ class WordpressMarkdownConverter:
         with key_error_silence():
             del header["wordads_ufa"]
         header["guid"] = header["guid"].replace("http://localhost", "")
-        header["author"] = "Denis Nuțiu"
+        header["author"] = self.configurator.converter_options.author_rewrite
         return header
 
     def remove_html_tags(self, post_lines):
@@ -46,11 +60,13 @@ class WordpressMarkdownConverter:
             soup = BeautifulSoup(line)
             for content in soup.contents:
                 if isinstance(content, Tag):
+                    # Check if it is a youtube video and add it as a shortcode.
                     if "is-provider-youtube" in content.attrs.get("class", []):
                         video_link = content.findNext("iframe").attrs["src"]
                         video_id_part = video_link.rsplit("/")
                         video_id = video_id_part[-1].split("?")[0]
                         fixed_lines.append(f"{{{{< youtube {video_id} >}}}}\n")
+                    # Fix unknown tags.
                     else:
                         tags = list(map(str, content.contents))
                         if tags:
@@ -58,6 +74,7 @@ class WordpressMarkdownConverter:
                             if fixed_tags:
                                 fixed_lines.extend(fixed_tags)
                 else:
+                    # Add the content as is.
                     fixed_lines.append(str(content))
         return fixed_lines
 
@@ -76,10 +93,13 @@ class WordpressMarkdownConverter:
             The converted post content
         """
         # fix  link
-        post_content = post_content.replace("http://localhost/", "/")
-        post_content = post_content.replace(
-            "https://nuculabs.wordpress.com/", "https://nuculabs.dev/posts/"
-        )
+        for task in self.configurator.converter_options.links_rewrite:
+            source_link = task.get("source")
+            target_link = task.get("target")
+            if not source_link or not target_link:
+                continue
+            post_content = post_content.replace(source_link, target_link)
+
         # fix unknown tags
         post_lines = post_content.split("\n")
         fixed_lines = self.remove_html_tags(post_lines)
@@ -113,6 +133,9 @@ class WordpressMarkdownConverter:
         post_content : str
             The post content
         """
+        # ensure that output path exists
+        output_path.parent.mkdir(parents=True, exist_ok=True)
+
         with open(output_path, "w") as fo:
             header = ["---\n", yaml.dump(post_header), "---\n"]
             fo.writelines(header)
diff --git a/app/tests/utils_test.py b/app/tests/utils_test.py
index 60294f3..a43894a 100644
--- a/app/tests/utils_test.py
+++ b/app/tests/utils_test.py
@@ -1,6 +1,10 @@
 import pytest
 
-from app.utils import key_error_silence, guard_against_none_or_empty_str
+from app.utils import (
+    key_error_silence,
+    guard_against_none_or_empty_str,
+    guard_against_none,
+)
 
 
 def test_key_error_silence():
@@ -33,3 +37,9 @@ def test_guard_against_none_or_empty_str(input_data):
 
 def test_guard_against_none_or_empty_str_happy():
     guard_against_none_or_empty_str("a", "test")
+
+
+def test_guard_against_none():
+    with pytest.raises(ValueError):
+        guard_against_none(None, "test")
+    guard_against_none(1, "test")
diff --git a/app/utils.py b/app/utils.py
index 8880fd4..f8a7353 100644
--- a/app/utils.py
+++ b/app/utils.py
@@ -26,3 +26,19 @@ def guard_against_none_or_empty_str(value: str, name: str):
 
     if value is None or not isinstance(value, str) or value == "":
         raise ValueError(f"{name} cannot be None or empty")
+
+
+def guard_against_none(value, name: str):
+    """
+    Guard against None.
+
+    Parameters:
+    ----------
+    value: str
+        The value to check.
+    name: str
+        The name of the value.
+    """
+
+    if value is None:
+        raise ValueError(f"{name} cannot be None")
diff --git a/config.yaml b/config.yaml
new file mode 100644
index 0000000..c931de4
--- /dev/null
+++ b/config.yaml
@@ -0,0 +1,11 @@
+logging_level: "INFO"
+source_path: "/home/denis/PycharmProjects/jekyll-to-hugo/my_test_data/_posts"
+output_path: "/home/denis/PycharmProjects/jekyll-to-hugo/my_test_data/_posts_hugo"
+converter: "wordpress_markdown_converter"
+converter_options:
+  author_rewrite: "NucuLabs.dev"
+  links_rewrite:
+    - source: "http://localhost/"
+      target: "/"
+    - source: "https://nuculabs.wordpress.com/"
+      target: "https://nuculabs.dev/posts/"
\ No newline at end of file
diff --git a/main.py b/main.py
index 2fc1642..a05ee38 100644
--- a/main.py
+++ b/main.py
@@ -1,26 +1,23 @@
 import logging
 import sys
 
+from app.config import Configurator
 from app.converter import Converter
 
 
 def main():
+    # Configurator
+    configurator = Configurator()
+
     # Logging configuration
     logging.basicConfig(
         format="%(asctime)s %(process)d %(levelname)s %(message)s",
-        level=logging.INFO,
+        level=configurator.logging_level,
         datefmt="%Y-%m-%d %H:%M:%S",
     )
-    logger = logging.getLogger(__name__)
-
-    if len(sys.argv) != 3:
-        logger.error(
-            "Usage: python main.py <source path to jekyll posts> <output path to hugo posts>"
-        )
-        sys.exit(1)
 
     # Converter
-    converter = Converter(sys.argv[1], sys.argv[2])
+    converter = Converter(configurator)
     converter.convert()
 
 
diff --git a/readme.md b/readme.md
index 06e6ac7..fa5426a 100644
--- a/readme.md
+++ b/readme.md
@@ -4,6 +4,10 @@ Jekyll to Hugo Converter is a simple tool to convert Jekyll posts to Hugo posts.
 
 You can also use it to convert your WordPress blog into a Hugo blog. Tutorial coming soon.
 
+Note:
+- This tool is still under development.
+- This tool is not perfect, it will not convert everything.
+
 ## Usage
 
 ```bash
diff --git a/requirements.txt b/requirements.txt
index 8dbee84..fe1f124 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,4 @@
 beautifulsoup4==4.12.2
 PyYAML==6.0
 soupsieve==2.4.1
+pydantic==1.10.8
\ No newline at end of file