Also I think many people think it is very complicated to setup database, I just run it yesterday on OS X the command issues were: nix-env -iA nixpkgs.postg

Also I think many people think it is very complicated to setup database, I just run it yesterday on OS X the command issues were: nix-env -iA nixpkgs.postgresql_11 initdb ~/data pg_ctl -D ~/data start createdb First command installs the database, second one populates database files, this one starts the database, last command is optional and it creates a database for your user name.