Update

app.py

@@ -1,7 +1,3 @@
-import importlib
-import os
-import subprocess
-import sys
 import gradio as gr
 import spaces  # type: ignore - ZeroGPU spaces library
 import numpy as np
@@ -15,6 +11,7 @@ from tim.schedulers.transition import TransitionSchedule
 from tim.utils.misc_utils import instantiate_from_config, init_from_ckpt
 from tim.models.vae import get_sd_vae, get_dc_ae, sd_vae_decode, dc_ae_decode
 from tim.models.utils.text_encoders import load_text_encoder, encode_prompt
+from kernels import get_kernel
 
 # Configuration
 dtype = torch.bfloat16
@@ -254,32 +251,9 @@ css = """
 }
 """
 
-
-def ensure_flash_attn():
-    try:
-        importlib.import_module("flash_attn")
-        return
-    except Exception:
-        pass
-
-    # Optional: skip source builds if a wheel is available
-    env = os.environ.copy()
-    env["FLASH_ATTENTION_SKIP_CUDA_BUILD"] = "TRUE"
-
-    # Fast path: try pip (prebuilt wheels exist for common torch/CUDA combos)
-    subprocess.check_call(
-        [sys.executable, "-m", "pip", "install", "--no-build-isolation", "flash-attn"],
-        env=env,
-    )
-
-    # Validate import
-    importlib.import_module("flash_attn")
-
-
 # Initialize model components
 try:
-    if device == "cuda":
-        ensure_flash_attn()
+    flash_attn = get_kernel("kernels-community/flash-attn")
     load_model_components(device)
     print("Model components loaded successfully!")
 except Exception as e:

pyproject.toml

@@ -13,6 +13,7 @@ dependencies = [
     "gradio>=5.44.1",
     "imageio==2.34.2",
     "imageio-ffmpeg==0.5.1",
+    "kernels>=0.10.0",
     "moviepy==1.0.3",
     "numpy==1.26.0",
     "omegaconf>=2.3.0",

requirements.txt

@@ -11,4 +11,5 @@ Pillow
 safetensors
 tqdm
 # flash-attn @ https://github.com/mjun0812/flash-attention-prebuild-wheels/releases/download/v0.3.14/flash_attn-2.8.2+cu129torch2.8-cp310-cp310-linux_x86_64.whl
-accelerate
+accelerate
+kernels

uv.lock

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 ]
 
+[[package]]
+name = "kernels"
+version = "0.10.0"
+source = { registry = "https://pypi.org/simple" }
+dependencies = [
+    { name = "huggingface-hub" },
+    { name = "packaging" },
+    { name = "pyyaml" },
+    { name = "tomli", marker = "python_full_version < '3.11'" },
+]
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+wheels = [
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+]
+
 [[package]]
 name = "markdown-it-py"
 version = "4.0.0"
@@ -2147,6 +2162,7 @@ dependencies = [
     { name = "gradio" },
     { name = "imageio" },
     { name = "imageio-ffmpeg" },
+    { name = "kernels" },
     { name = "moviepy" },
     { name = "numpy" },
     { name = "omegaconf" },
@@ -2174,6 +2190,7 @@ requires-dist = [
     { name = "gradio", specifier = ">=5.44.1" },
     { name = "imageio", specifier = "==2.34.2" },
     { name = "imageio-ffmpeg", specifier = "==0.5.1" },
+    { name = "kernels", specifier = ">=0.10.0" },
     { name = "moviepy", specifier = "==1.0.3" },
     { name = "numpy", specifier = "==1.26.0" },
     { name = "omegaconf", specifier = ">=2.3.0" },
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 ]
 
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