I gave a short talk about #debian on mobile devices at the #DebianMiniDebconf in Regensburg last weekend (https://wiki.debian.org/DebianEvents/de/2021/MiniDebConfRegensburg#Saturday) and I could present the slides using a #librem5 with HDMI over usb-c connected to the presenter and phom (https://source.puri.sm/guido.gunther/phom) as a virtual mouse. Needed some hacks still to e.g. bring up #squeekboard to exit full screen but I think we can make this work out of the box in the future.
Great talk! That was really neat to see it all done over your phone.