This frontend looks great and has a lot of promise if features continue to be added. So far, great job! Right now I am bouncing between EmuWizard, Lazarus and this one, in the end, I'll likely use whichever works the best with all the emus I want. Thanks to Howard's Lazarus plugins, a lot of other emulators can be used with wrappers, so keep in mind, you may not need to focus so much on the Zinc support, check Howard's wrappers and see how you can integrate them into your frontend.