New opensaas walkthrough vid needed.

Opensaas devs please do a new walkthrough detailing how to personalize the opensaas template and detail debugging steps for whatever errors may arise. Integration of an llm other than openai's chatgpt llm would also be helpful as it would be so easy to deploy a useful saas if only the learning curve wasn't so steep. If I have a guide start to finish with debugging examples I would be good.