HKUDS/nanobot ? reverse-engineered prompt

I want to build my own personal AI agent. It needs to be really lightweight and easy to run, something I can host myself. The most important thing is that it can connect to all my chat apps like Discord, Telegram, Slack, and even WeChat. I want to be able to choose which AI model powers it, whether it's from OpenAI, Anthropic/Claude, or even a local model I'm running with Ollama.

This agent should have a good memory to remember our conversations, and it should be able to run longer tasks for me in the background. I'd love for it to be able to search the web for information and also show me its "thinking" process. It should be able to handle not just text, but images and other files too. Make the setup really simple, maybe with an interactive wizard to guide me through picking a model and connecting my accounts.