Initializing to an existing project

I’m not the most proficient, but I might be missing something. I can’t figure out how to initialize using the CLI tool into an existing project. I wrote all my code and tested locally. All I really need is a serverless.yml file and a handler file to call my node function.

When I use the CLI, I get this:

serverless --org=XXXXX

And that will only create a new folder where I am with a new serverless project. Am I OK to just copy and paste stuff up a folder and deploy? Am I missing something on how to initialize a new sls project with an existing code base?