configure the environment variables
NEXT_PUBLIC_OPENAI_API_KEY=
NEXT_PUBLIC_PRESENCE_PUBLIC_KEY=
NEXT_PUBLIC_PRESENCE_APP_KEY=
NEXT_PUBLIC_PRESENCE_CHANNEL_ID=
NEXT_PUBLIC_OPENAI_API_KEY is your OpenAI API key , you can get it from hereNEXT_PUBLIC_PRESENCE_PUBLIC_KEY is your Presence public key , you can get it from hereNEXT_PUBLIC_PRESENCE_APP_KEY is your Presence app key , you can get it from hereNEXT_PUBLIC_PRESENCE_CHANNEL_ID is your Presence channel id , you can custom it , doesn't need to be unique