I am also interested in movement the other way. My family comes from Deutschen Rust in northwestern Bohemia. It has been said that groups of Jewish people migrated, or were invited to this place, at that time(late 1700s) from other parts of the Austrian Empire. I am wondering, if my 3rd great grandfather and his cousins moved here from https://en.m.wikipedia.org/wiki/Rust,_Burgenland
-thus the name of the village Deutschen Rust being an acknowledgment of the place from which these immigrants to the mountains of Bohemia (on the border of both Bavaria and Saxony -"Deutsch" in the Austrian context...) came.
-just a thought.