diff --git a/config/config.py b/config/config.py
index 8619b2a..9a50cb9 100644
--- a/config/config.py
+++ b/config/config.py
@@ -1,8 +1,18 @@
-from typing import Optional
+from typing import Optional, Any
 from dataclasses import dataclass
 from omegaconf import OmegaConf, DictConfig
 import os
+from pathlib import Path
 
+@dataclass
+class OpenAI:
+    api_key: str
+
+    def getattr(self, name: str):
+        return getattr(self, name)
+
+    def _setattr(self, name: str, value: Any):
+        setattr(self, name, value)
 
 @dataclass
 class Zotero:
@@ -10,25 +20,30 @@ class Zotero:
     library_id: str
     library_type: str
 
-    def getattr(self, name):
+    def getattr(self, name: str):
         return getattr(self, name)
 
-    def _setattr(self, name, value):
+    def _setattr(self, name: str, value: Any):
         setattr(self, name, value)
 
 
 @dataclass
 class Database:
     name: str
-    path: str
-    temp: str
+    path: str | Path
+    temp: str | Path
 
-    def getattr(self, name):
+    def getattr(self, name: str):
         return getattr(self, name)
 
-    def _setattr(self, name, value):
+    def _setattr(self, name: str, value: Any):
         setattr(self, name, value)
 
+    def __post_init__(self):
+        if isinstance(self.path, str):
+            self.path = Path(self.path)
+        if isinstance(self.temp, str):
+            self.temp = Path(self.temp)
 
 @dataclass
 class Mail:
@@ -59,13 +74,13 @@ class Mail:
     <p style="-qt-paragraph-type:empty; margin-top:0px; margin-bottom:0px; margin-left:0px;
     margin-right:0px; -qt-block-indent:0; text-indent:0px;"><br /></p></body></html>"""
 
-    def getattr(self, name):
+    def getattr(self, name: str):
         return getattr(self, name)
 
-    def _setattr(self, name, value):
+    def _setattr(self, name: str, value: Any):
         setattr(self, name, value)
 
-    def setValue(self, **kwargs):
+    def setValue(self, **kwargs: Any):
         for key, value in kwargs.items():
             if hasattr(self, key):
                 setattr(self, key, value)
@@ -79,7 +94,7 @@ class Icons:
         self._colors = None
         self._icons = None
 
-    def assign(self, key, value):
+    def assign(self, key: str, value: Any):
         setattr(self, key, value)
 
     @property
@@ -87,7 +102,7 @@ class Icons:
         return self._path
 
     @path.setter
-    def path(self, value):
+    def path(self, value: Any):
         self._path = value
 
     @property
@@ -95,7 +110,7 @@ class Icons:
         return self._colors
 
     @colors.setter
-    def colors(self, value):
+    def colors(self, value: Any):
         self._colors = value
 
     @property
@@ -103,10 +118,10 @@ class Icons:
         return self._icons
 
     @icons.setter
-    def icons(self, value):
+    def icons(self, value: Any):
         self._icons = value
 
-    def get(self, name):
+    def get(self, name: str):
         return self.icons.get(name)
 
 
@@ -151,11 +166,11 @@ class Config:
         return Zotero(**self._config.zotero)
 
     @property
-    def zotero_attr(self, name):
+    def zotero_attr(self, name: str):
         return getattr(self.zotero, name)
 
     @zotero_attr.setter
-    def zotero_attr(self, name, value):
+    def zotero_attr(self, name: str, value: Any):
         self.zotero._setattr(name, value)
 
     @property
@@ -163,30 +178,34 @@ class Config:
         return Database(**self._config.database)
 
     @property
-    def database_attr(self, name):
+    def database_attr(self, name: str):
         return getattr(self.database, name)
 
     @database_attr.setter
-    def database_attr(self, name, value):
+    def database_attr(self, name: str, value: Any):
         self.database._setattr(name, value)
 
+    @property
+    def openAI(self):
+        return OpenAI(**self._config.openAI)
+
     @property
     def mail(self):
         return Mail(**self._config.mail)
 
-    def mail_attr(self, name):
+    def mail_attr(self, name: str):
         return getattr(self.mail, name)
 
-    def set_mail_attr(self, name, value):
+    def set_mail_attr(self, name: str, value: Any):
         OmegaConf.update(self._config, f"mail.{name}", value)
 
-    def set_database_attr(self, name, value):
+    def set_database_attr(self, name: str, value: Any):
         OmegaConf.update(self._config, f"database.{name}", value)
 
-    def set_zotero_attr(self, name, value):
+    def set_zotero_attr(self, name: str, value: Any):
         OmegaConf.update(self._config, f"zotero.{name}", value)
 
-    def set_icon_attr(self, name, value):
+    def set_icon_attr(self, name: str, value: Any):
         OmegaConf.update(self._config, f"icons.{name}", value)
 
     @property