Software used to create demo videos?

Great work on the latest Promox release, as usual a superb product with outstanding potential, thank you.

Friendly advice please?

Anyone know what software was used for creating the Proxmox video tutorials?

I'm guessing screen capture software (there are many open source), and some sort of text-to-speech engine, but which?

My reason for asking is I like the way it fits together and want to make some similar videos.

I'd be interested as I want to do a similar thing and it would shortcut the usual trawling through available software options that are normally associated with such a task.

Thanks,