diff --git a/src/game2.py b/src/game2.py
deleted file mode 100644
index 15b4f93..0000000
--- a/src/game2.py
+++ /dev/null
@@ -1,30 +0,0 @@
-from dataclasses import dataclass, field
-from time import time
-
-
-@dataclass
-class Game():
-    """Simple game class that contains the necessary fields.
-    Saving, updating and removing is done by game manager classes."""
-
-    # State
-    removed    : bool = field(default=False, init=False)
-    blacklisted: bool = field(default=False, init=False)
-    added      : int  = field(default=-1, init=False)
-    last_played: int  = field(default=-1, init=False)
-    
-    # Metadata
-    source     : str  = None
-    name       : str  = None
-    game_id    : str  = None
-    developer  : str  = None
-    
-    # Launching
-    executable : str  = None
-    
-    # Display
-    game_cover : str  = None
-    hidden     : bool = False
-
-    def __post_init__(self):
-        self.added = int(time())
\ No newline at end of file
diff --git a/src/importer/source.py b/src/importer/source.py
index 957fc45..55f9227 100644
--- a/src/importer/source.py
+++ b/src/importer/source.py
@@ -1,3 +1,4 @@
+from abc import abstractmethod
 from collections.abc import Iterable, Iterator
 from enum import IntEnum, auto
 
@@ -19,18 +20,18 @@ class SourceIterator(Iterator):
     def __iter__(self):
         return self
 
+    @abstractmethod
     def __next__(self):
-        raise NotImplementedError()
+        pass
 
 
 class Source(Iterable):
-    """Source of games. Can be a program location on disk with a config file that points to game for example"""
+    """Source of games. E.g an installed app with a config file that lists game directories"""
 
-    win = None
+    win = None # TODO maybe not depend on that ?
 
     name: str
     variant: str
-    executable_format: str
 
     def __init__(self, win) -> None:
         super().__init__()
@@ -38,7 +39,7 @@ class Source(Iterable):
 
     @property
     def full_name(self):
-        """Get the source's full name"""
+        """The source's full name"""
         s = self.name
         if self.variant is not None:
             s += " (%s)" % self.variant
@@ -46,13 +47,20 @@ class Source(Iterable):
 
     @property
     def game_id_format(self):
-        """Get the string format used to construct game IDs"""
+        """The string format used to construct game IDs"""
         _format = self.name.lower()
         if self.variant is not None: 
             _format += "_" + self.variant.lower()
         _format += "_{game_id}_{game_internal_id}"
         return _format
 
+    @property
+    @abstractmethod
+    def executable_format(self):
+        """The executable format used to construct game executables"""
+        pass
+
+    @abstractmethod
     def __iter__(self):
         """Get the source's iterator, to use in for loops"""
-        raise NotImplementedError()
\ No newline at end of file
+        pass
\ No newline at end of file
diff --git a/src/importer/sources/lutris_source.py b/src/importer/sources/lutris_source.py
index a167f10..5f76f72 100644
--- a/src/importer/sources/lutris_source.py
+++ b/src/importer/sources/lutris_source.py
@@ -1,9 +1,9 @@
 from functools import cached_property
 from sqlite3 import connect
 
-from cartridges.game2 import Game
-from cartridges.importer.source import Source, SourceIterator
-from cartridges.importer.decorators import replaced_by_schema_key, replaced_by_path
+from src.game2 import Game
+from src.importer.source import Source, SourceIterator
+from src.importer.decorators import replaced_by_schema_key, replaced_by_path
 
 
 class LutrisSourceIterator(SourceIterator):
@@ -56,17 +56,17 @@ class LutrisSourceIterator(SourceIterator):
                 continue
             
             # Build basic game
-            game = Game(
-                name=row[1],
-                hidden=row[4],
-                source=self.source.full_name,
-                game_id=self.source.game_id_format.format(game_id=row[2]),
-                executable=self.source.executable_format.format(game_id=row[2]),
-                developer=None, # TODO get developer metadata on Lutris
-            )
+            values = {
+                "name"      : row[1],
+                "hidden"    : row[4],
+                "source"    : self.source.full_name,
+                "game_id"   : self.source.game_id_format.format(game_id=row[2]),
+                "executable": self.source.executable_format.format(game_id=row[2]),
+                "developer" : None, # TODO get developer metadata on Lutris
+            }
             # TODO Add official image
             # TODO Add SGDB image  
-            return game
+            return values
 
 class LutrisSource(Source):
     
diff --git a/src/managers/__init__.py b/src/managers/__init__.py
deleted file mode 100644
index e69de29..0000000
diff --git a/src/managers/game_manager.py b/src/managers/game_manager.py
deleted file mode 100644
index 9af60b4..0000000
--- a/src/managers/game_manager.py
+++ /dev/null
@@ -1,14 +0,0 @@
-class GameManager():
-    """Interface for systems that save, update and remove games"""
-
-    def add(self, game):
-        """Add a game to the manager"""
-        raise NotImplementedError()
-
-    def update(self, game):
-        """Update an existing game in the manager"""
-        raise NotImplementedError()
-
-    def remove(self, game):
-        """Remove an existing game from the manager"""
-        raise NotImplementedError()
\ No newline at end of file