lorniu wrote an org-mode export package for making a presentation.

Here are some good things about this package:

  • My dream to include videos was finally achieved
  • The speed to compile the whole presentation is about one or two seconds
  • It is very easy to use

Some limitations:

  • It requires an Internet connection
  • The narrow function is not available right now
  • Video file name is more strict, with no underscore

I will consider making PPT my first choice in the future.