I tried to set this up recently but failed. I wish there was a up to date noob friendly guide for this. IIRC some containers, mongodb was one of them, didn’t go healthy.

Leipzig and Dresden are fine. Especially Leipzig as it’s a student city, so of course it features more progressive people.

All the other, smaller cities, are not though. Erfurt, Jena, Chemnitz, Halle, … They are all considered right wing cities. Rural areas are generally more conservative and right leaning, I think that’s a global phenomenon.