How to upload a static website from the build folder

First of all let me say that I am new to the Digital Ocean platform. I am currently exploring the ‘apps’ section and I am currently trying to upload a static website to an app without needing the overhead of an additional github repository. I created an app with the ‘static assets’ setup. I am now trying to figure out where to upload the What I would ideally would do is run a command similar like I would do in Firebase. It would go something like this:

firebase login

firebase use <yourprojectid>

Then in the build folder created by running npm build you would do the following:

firebase deploy

And it would upload the static build assets to the project.

Are similar commands available or do I need to use a public repo to host the website? Or can I drag and drop the files?