How to create and interaction between google drive and aws s3?

I'm trying to set up a connection a Google Drive folder and S3 bucket, but I'm not sure where to start. I've already created a sort of "Frankenstein process", but it's easy to use only by me and sharing it to my co-workers it's a pain.

I have a script that generates a plain text file and saves it into a drive folder. And to upload, I've installed Drive file stream to save it in my mac, then all I did was create a script using Python3, with the boto3 library, to upload the text file into different s3 buckets depending on the file name.

I was thinking that I can create a lambda to process the file into the s3 buckets but I cannot resolve how to create the connection between drive and s3. I would appreciate if someone could give me a piece of advise on how to start with this.