Symphony is fine, but I'm more impressed at them sharing the spec and encourage others to build their own[0]. I haven't seen quite the same example of "show me the prompt" in open source before, alongside the open invite to build it yourself.
> Implement Symphony according to the following spec:
> https://github.com/openai/symphony/blob/main/SPEC.md [1]
[0] https://github.com/openai/symphony?tab=readme-ov-file#option...
[1] https://github.com/openai/symphony/blob/main/SPEC.md