Scanning
You will need a way to get paper documents into digital form to upload.
I don’t expect everyone to have a flatbed scanner handy. My recommendation is to use a cell phone camera (most phones have good enough cameras these days) and “scanner software.”
It is totally acceptable to use the camera in your cellphone (or tablet) as a scanner. I recommend getting special purpose scanning software that can automatically do color correction and image shape correction. I use CamScanner, which works on iOS and Android, and has gives academics free access to the “pro” features. However, there are zillions of similar apps. The built in camera app on your phone is OK, but it will be better to have a scanning app.
Note: if you are drawing digitally, you won’t need to scan what you draw - but make sure you know how to export from your drawing program in some image format (like PNG or JPG) to upload. Even if you have a tablet, you might want to scan things.
Whatever you pick, make sure you are able to do it quickly. A common use case will be in class where we ask you to sketch something and upload it for others to see. We will ask you to practice doing this before class.