It’s a long time since I used any kind of powerpoint-ish presentation building software (2016, I think). My software of choice these days is RevealJS ( with the occasional foray into using Big ( The premise is simple in both cases- write your presentation out in markdown or html and let javascript and css do the work to create the slide deck. This approach appeals greatly because there’s no need to plan the slides in advance, you can write them as you go, in a text editor.