Welcome dude!
If I’m in a club the only thing I care about is that the DJ is dropping great tunes. They could be using a microphone taped to a boombox for all I care (OK, maybe the sound quality might upset me a tiny bit). I impromptu DJd a house party on a tablet a few weeks ago – I just loved the flexibility. I downloaded a couple of apps (DJay, CrossDJ) about half an hour beforehand, and learnt as I went. Really blew me away the quality of DJing you can do with these things, all my regular deck techniques just transferred straight across and I was waveriding in lieu of cueing. So go for it. If anyone says you’re not a “proper DJ”, tell them to shut up. You can also tell them you’re actually doing a LOT more DJing than some supposed superstar “DJ” producers 😉