Is appropriate to use nodejs and typescript to make a service that is not an API or web application? Currently, I'm making a service who periodically read emails attachments and send the attachments to another app, save info about the emails in db etc.. It's working good, but i can't find in the internet examples of structure of a non-web app with typescript

What you think? I know it is possible because I have already done... But is appropriate? Do you have some examples where I can check? Cant find in GitHub either, I don't know how to call an app like this