nix-deploy/config/hosts/rudiger/services/postgres.nix

{ ... }:
{
  services.postgresql = {
    enable = true;
    ensureDatabases = [ "nextcloud" ];
    ensureUsers = [
     { name = "nextcloud";
       ensurePermissions."DATABASE nextcloud" = "ALL PRIVILEGES";
     }
    ];
  };

  services.postgresqlBackup = {
    enable = true;
    location = "/var/lib/postgresql/backup";
    databases = [ "synapse" ];
    startAt = "02:30";
    compression = "none";
  };

}