Why is it hard to set up llms? You can just ask an llm to do it for you, no? If this relatively simple task is already too much for llms then what good are they?

In the case of the GPT-OSS models, the worst (time consuming) part of supporting it is the new format they've trained the model with, "OpenAI harmony", in my own clients I couldn't just replace the model and call it a day, but still working on getting then to work correctly with tool calling...