diff --git a/README.md b/README.md
index 078034f..0b6243b 100644
--- a/README.md
+++ b/README.md
@@ -21,7 +21,7 @@ git clone https://github.com/Ethanfel/ComfyUI-Tween.git
 pip install -r requirements.txt
 ```
 
-Dependencies are declared in `pyproject.toml` and `requirements.txt` and are installed automatically by ComfyUI Manager or pip. LDF-VFI requires PyTorch 2.5+ plus a current `diffusers`/`accelerate` stack.
+Dependencies are declared in `pyproject.toml` and `requirements.txt` and are installed automatically by ComfyUI Manager or pip. There is intentionally no custom `install.py`, avoiding a second redundant dependency-install pass after Manager processes `requirements.txt`. LDF-VFI requires PyTorch 2.5+ plus a current `diffusers`/`accelerate` stack.
 
 ### Demo workflow
 
diff --git a/install.py b/install.py
deleted file mode 100644
index 5b81335..0000000
--- a/install.py
+++ /dev/null
@@ -1,21 +0,0 @@
-import os
-import subprocess
-import sys
-
-
-def install():
-    """Install required dependencies without mutating optional GPU packages."""
-    requirements_path = os.path.join(os.path.dirname(__file__), "requirements.txt")
-    subprocess.check_call([
-        sys.executable, "-m", "pip", "install", "-r", requirements_path
-    ])
-    print(
-        "[Tween] Optional cupy is not installed automatically. "
-        "BIM-VFI, SGM-VFI, and GIMM-VFI use the PyTorch fallback unless you "
-        "install the matching cupy wheel manually; EMA-VFI, SPEED, and "
-        "LDF-VFI do not use cupy."
-    )
-
-
-if __name__ == "__main__":
-    install()
diff --git a/pyproject.toml b/pyproject.toml
index 8fe4de1..b6a6415 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,7 +1,7 @@
 [project]
 name = "comfyui-tween"
 description = "Video frame interpolation nodes for ComfyUI using BIM-VFI, EMA-VFI, SGM-VFI, GIMM-VFI, SPEED, and LDF-VFI."
-version = "1.2.1"
+version = "1.2.2"
 license = "Apache-2.0"
 requires-python = ">=3.10"
 dependencies = [
diff --git a/tests/test_install.py b/tests/test_install.py
index 662ac1b..0fe7b68 100644
--- a/tests/test_install.py
+++ b/tests/test_install.py
@@ -1,19 +1,26 @@
-import os
-import subprocess
-import sys
-
-import install as tween_install
+from pathlib import Path
+import tomllib
 
 
-def test_installer_never_installs_optional_cupy(monkeypatch):
-    calls = []
-    monkeypatch.setattr(subprocess, "check_call", calls.append)
+REPO_ROOT = Path(__file__).resolve().parents[1]
 
-    tween_install.install()
 
-    requirements_path = os.path.join(
-        os.path.dirname(tween_install.__file__), "requirements.txt"
-    )
-    assert calls == [[
-        sys.executable, "-m", "pip", "install", "-r", requirements_path
-    ]]
+def _requirements():
+    return [
+        line.strip()
+        for line in (REPO_ROOT / "requirements.txt").read_text().splitlines()
+        if line.strip() and not line.lstrip().startswith("#")
+    ]
+
+
+def test_comfy_manager_has_no_redundant_install_script():
+    assert not (REPO_ROOT / "install.py").exists()
+
+
+def test_declared_dependencies_stay_aligned_and_exclude_optional_cupy():
+    with (REPO_ROOT / "pyproject.toml").open("rb") as file:
+        project_dependencies = tomllib.load(file)["project"]["dependencies"]
+
+    requirements = _requirements()
+    assert requirements == project_dependencies
+    assert not any("cupy" in dependency.lower() for dependency in requirements)