Replikation in Postgresql

I am new to Postgresql and want to ask whether is it possible to implement replication using 2 DBs, in a way that both DBs work as read/write.

In other words, I have 2 similar installations on 2 different PCs, each running separate PostgreSQL and each writes its own Datasets.

At the end I want to have all Datasets from both installations in both DBs.

According to the definitions, this is a master-master replication, and I want to ask whether such a replication is possible with PostgreSQL

Yes, it’s possible with BDR from 2ndQuadrant. If you have further questions please contact me.
Please keep in mind this is a german speaking forum …