Including an external jar library in smartapp

Hi everyone, just starting out with SmartThings. I am building a smartapp and I need to include classes from an external jar library to my code. I have the jar file locally, on my computer.
Can anybody please tell me if this is possible via some smartapp settings or a specific command in groovy?

Don’t think it’s possible. If ST doesn’t support the library, there’s no way for you to upload it - since your SmartApp runs on their servers in the cloud, it won’t be there when you need it.