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Summary

By updating the Quick Start section of README.md, this PR fixes a dependency issue during environment setup:

  • Pin flash-attn version to 2.3.4

Background

On 2025/8/30, I set up the environment on AWS Lambda Cloud (A100 40GB) following the Quick Start instructions in README.md.
During this process, I faced the following issue:

  1. flash-attn version was not specified, so the latest version (2.8.3) was installed.
    This caused conflicts with other dependencies and could not be installed successfully.

Reference (logs with errors, simplified):
original_setup_cleansed.log


Solution

  • Pinned flash-attn to version 2.3.4
  • Updated the Quick Start section in README.md

After this change, the environment setup completed without errors.

Reference (logs after fix, simplified):
suggested_setup_cleansed.log


Note

The logs also include changes in pyproject.toml (pinning numpy and adding decord).
However, this PR only modifies README.md.
The changes to pyproject.toml will be submitted in a separate PR.

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