Great question. It might be best if I construct a bit of an image of what we offer, so that I present it to you fairly and accurately. Think of our primary product (Droplet) as an empty building that you rent. If you can fit something inside of it, or build it, then it can work. There might be a limit to how much power you can push without upgrading infrastructure, or there may not be enough space here or there for this or that. You might have an appliance that has unique power connectors that require additional work before they can plug in. Overall though, it's just a building and what you do with it on the inside is largely up to you.
In the same way, a droplet is a Linux system. If you can install it on Linux, then you can use it on our platform. If you're not sure how, look for some tutorials first and know that there may be no one-click solution for hosting that particular stack. Quite often the tutorials for such things are actually pretty easy though, and the knowledge gained from them only adds to the value of your resume.
Hope that helps a bit :)