JavaLand is Germany's biggest Java conference. I'll give the German talk "Flutter für Java-Entwickler: Mobil-, Web- & Desktop-Front-Ends mit 1 Code-Basis?" there on March 16, 2022.
I gave a 40-minute talk about 'How to Show Version Histories in Java Application Front-Ends?' ('Wie Datenversionen in Front-Ends von Java-Anwendungen zeigen?' in German) at W-JAX Munich 2021. I compared four ways to store versions and discuss my project experiences with the open-source library JaVers.