First steps to move to the capital of Germany

Visiting Berlin is a fun experience, it has things to do for people with all kinds of tastes like beautiful parks and buildings, impressive museums and an amazing history. All is fun until you actually need to live in this city.
Despite being one of the most advanced cities in Europe and having an envyable infrastructure, it is a city difficult to navigate due to its bureaucracy .
This website is dedicated to help you with some of the complicated aspects of moving to this great city and includes lessons that me, my wife, lab colleagues and friends have experienced between the years 2017 and 2023.
Themes:
Where to live: looking for an apartment in Berlin
Moving around: transportation
Visa and Passport
The foreign office and its perks
Communication: how to get a Mobile
Medical insurance
Flights to and from Berlin
Creating a bank account
Useful tips
What to do in case of emergency?
Where to network?
Do you have Hobbies?