A while back, I gave a conference presentation, but instead of using Powerpoint, I just had a directory with a load of mp4 videos. It turns out that if you run

A while back, I gave a conference presentation, but instead of using Powerpoint, I just had a directory with a load of mp4 videos. It turns out that if you run xine with all of them on the command line, you can use the right arrow to skip to the next one. Put a long-lived static image at the end of each video, and you have a completely custom-built set of slides with whatever transitions you want. In my case, I used the videos to illustrate mathematical models and results. It was a marginally more powerful method than using Powerpoint.