You are doing a Linux install but keep in mind that masjid audience is less technical, but more importantly, the average non technical user doesn't do anything but browse web on their laptop. I'd say shout out system76 for new laptops, and do your whole presentation on a laptop, not a desktop. Just make it look so convenient that it's easier than the normie way. Maybe even have a brother set up a fresh windows laptop on a smaller side screen and do things faster than him, while still explaining your full steps. This will take practice to do smoothly but I think the side by side will help your case a lot.