[CentOS] Slideshow/presentation software for CentOS

I am looking for software to make slideshows/presentations on CentOS, incorporating photos, videos and text (possibly also music) allowing for transition effects etc. I'd like to be able to drag and drop/rearrange photos etc. from different folders into a timeline and eventually end up with something I can show. Ideally without having to make copies of photos and store them in a folder specific for this but drag and drop from whatever folder the photo etc. already exists in.

Impress and similar PowerPoint-like software excluded.

I have found a few packages on the net but nothing that is still being developed.

Does anyone have any suggestions?

Thank you.