Claude Code's Dynamic Workflows Are Expensive，found an open-source version called OpenWorkflows

I recently upgraded Claude Code to version 4.8 and tried out Dynamic Workflows. I used it to develop a fairly complex feature for migrating a UE4 project to UE5. The quality was genuinely high, but it cost me more than 300 RMB in just one morning. My relay service only gives me a weekly quota of 600 RMB, so it is very easy to burn through the whole quota if I am not careful.

From what I have read online, Dynamic Workflows uses multi-angle exploration, adversarial validation, and solution voting. In other words, dozens of agents run in parallel for each requirement, challenge each other, and select the best answer. No wonder the output quality is relatively high. Does anyone here understand this mechanism well?

Since I am on a tight budget, I searched around and found an open-source version called OpenWorkflows (https://github.com/wellingfeng/OpenWorkflows). It says it can use cheaper large models such as Kimi and DeepSeek. Has anyone tried it? I would really appreciate a tutorial.