ComfyUI-Tween

The LDF-VFI sequence sampling adapter in ldf_backend.py is based on the
official LDF-VFI implementation:
https://github.com/xypeng9903/LDF-VFI

LDF-VFI is distributed under the Apache License, Version 2.0. Its official
runtime is downloaded on demand and retains its upstream LICENSE file.

SPEED runtime source is not redistributed by this project. It is downloaded
on demand from the official repository at a checksum-pinned commit.