Note that the SAIR lecture is from 6 months ago, this Beamer presentation is from 2 days ago.
Spotted the German guy. ;)
- he works in Germany (https://vedran.miletic.net/files/cv-vedran-miletic.pdf)
- the original author is Till Tantau (https://www.beamer.plus/Introduction.html) who is German (https://www.tcs.uni-luebeck.de/en/mitarbeiter/tantau/cv/)