diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 4e96dae..aa176fd 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -27,7 +27,7 @@ repos:
         args: [--target-version, "6.0"]
 
   - repo: https://github.com/astral-sh/ruff-pre-commit
-    rev: v0.15.8
+    rev: v0.15.5
     hooks:
       - id: ruff-check
         args: ["--fix", "--exit-non-zero-on-fix"]
diff --git a/.vscode/settings.json b/.vscode/settings.json
index 9260d8b..6e557e2 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -10,7 +10,6 @@
         "buildx",
         "chatbadge",
         "chatbadgeset",
-        "chzzk",
         "collectstatic",
         "colorama",
         "createsuperuser",
diff --git a/chzzk/__init__.py b/chzzk/__init__.py
deleted file mode 100644
index e69de29..0000000
diff --git a/chzzk/apps.py b/chzzk/apps.py
deleted file mode 100644
index cfc34a1..0000000
--- a/chzzk/apps.py
+++ /dev/null
@@ -1,7 +0,0 @@
-from django.apps import AppConfig
-
-
-class ChzzkConfig(AppConfig):
-    """Config for chzzk app."""
-
-    name = "chzzk"
diff --git a/chzzk/migrations/__init__.py b/chzzk/migrations/__init__.py
deleted file mode 100644
index e69de29..0000000
diff --git a/chzzk/models.py b/chzzk/models.py
deleted file mode 100644
index e69de29..0000000
diff --git a/chzzk/tests/__init__.py b/chzzk/tests/__init__.py
deleted file mode 100644
index e69de29..0000000
diff --git a/chzzk/views.py b/chzzk/views.py
deleted file mode 100644
index e69de29..0000000