0 used in phrases such as 'roll out the welcome wagon' and 'be greeted by the welcome wagon' to refer to a happy and friendly way of greeting people who are new to a place:
She likes to roll out the welcome wagon for (= greet and be friendly to) everyone who moves onto the block.
NOVÉ SLOVÁ
European
May 10, 2021
SLOVO DŇA
Shimmer
welcome wagon