Yes of course one can just do it. But having a bit of an umbrella organization around this would help get the word out.
I am located in Munich, Germany, not exactly a startup hup, but I have some connections to Berlin and would be willing to annoy my contacts there until they agree.
Also should the plans for my own company work out in the next months, I would be willing to offer exclusive intern/entry/mid-level positions.
Besides this digital Walz it might also be interesting to start a small network for "Global German Tech Talent" or something. I know there are a few germans in the Valley.