Best chatbot GUI frontend widget to place on website, "in front of" the Make chatbot "backend"?

I am about to create a chatbot “backend” using make, where a scenario workflow call OpenAI’s LLM, perhaps using Pinecone for RAG, LLM tools to call additional Make scenarios etc.

The questions is what GUI frontend widget to install on the website where the users are to be using the chatbot? I do not want to host anything in docker containers on a server etc but just install a few lines of HTML/JS to get the chatbot to live in front of the make.com chatbot backend. Any suggestions?