Since early 2020, many of us have gained new experiences working "remotely" at home or elsewhere away from the office, due to the constantly changing pandemic situation. For others, working together virtually is (and was) a necessity and “normal”, as they collaborate with colleagues or project partners from other cities or countries. Against this background, the topic of "virtual teams" and collaborating online is very relevant for many these days, and remote workers are often grateful for tips, methods, and tools. When it comes to city partnerships online collaboration plays a particularly important role, as there is not always time and opportunity to visit another city, especially when it is located at a great geographical distance abroad.