The class content (excluding images and the presentation framework) is licensed under
A Creative Commons Attribution-ShareAlike 4.0 International License.

The images are the copyright of their respective owners but should fall under fair use

Flowtime.js is (c) Marco Lago, the project's LICENSE.md file is available on its github repository here

Essentially you can do whatever you want with this presentation so long as you provide attribution. If you prefer not to link to it due to the types of images in the original that's fine, just credit me by name. The Flowtime.js license does require a link back.