https://github.com/vercel-labs/ai-chatbot
In this, how can I change each new chat to be initalised with a starter context of 5k tokens and a system message

I'm trying to understand this repo https://github.com/vercel-labs/ai-chatbot
In the api/chat/route.ts, how can I have each chat to be initialised with a system message and a context to start with
here, they give messages
but, I want to give something like <attached picture>
A system message and a 5k context as well
Is that possible?


PS - noob in next.js