When trying to run the terraform locally before I pushed my work to github, I ran into a problem with the file lambda.zip. The workflow creates this file automatically when it runs, but the terraform won't work without it. I don't know how common it is to run terraform init and plan before pushing changes to github, but I usually do especially when I am creating something new. I would recommend including the need to create the zip file somewhere in the readme when getting things going locally, if that is considered useful.
When trying to run the terraform locally before I pushed my work to github, I ran into a problem with the file lambda.zip. The workflow creates this file automatically when it runs, but the terraform won't work without it. I don't know how common it is to run terraform init and plan before pushing changes to github, but I usually do especially when I am creating something new. I would recommend including the need to create the zip file somewhere in the readme when getting things going locally, if that is considered useful.