Ragas also has a feature to generate ground truths and queries: https://docs.ragas.io/en/latest/getstarted/testset_generatio...
Although simply prompting an LLM with chunks of source documents might work better / cheaper - ragas tends to explode with retries in my experience.
Our goal is to focus on datasets and make it very easy to create and manage data.
In our next release, we will be launching a way to do this using a UI.