A few months now, actually! And if you mean here, I took over the local shop when Griff retired (he is from this world and liked what I could do). If you mean in general, it's not technically what I do - I'm a mechanical engineer. My papa is the most famous engineer in the world where I'm from, so I grew up learning everything I could about design, fabrication, assembly, and maintenance of anything from a kitchen knife to rocket hammers to energy shielding.