To make macOS automatically launch your PostgreSQL server at system start, do the following: 1. Edit the postgres-wrapper.sh script and adjust the file path variables at its start to reflect where you have installed Postgres, if that's not /usr/local/pgsql. 2. Copy the modified postgres-wrapper.sh script into some suitable installation directory. It can be, but doesn't have to be, where you keep the Postgres executables themselves. 3. Edit the org.postgresql.postgres.plist file and adjust its path for postgres-wrapper.sh to match what you did in step 2. Also, if you plan to run the Postgres server under some user name other than "postgres", adjust the UserName parameter value for that. 4. Copy the modified org.postgresql.postgres.plist file into /Library/LaunchDaemons/. You must do this as root: sudo cp org.postgresql.postgres.plist /Library/LaunchDaemons because the file will be ignored if it is not root-owned. At this point a reboot should launch the server. But if you want to test it without rebooting, you can do sudo launchctl load /Library/LaunchDaemons/org.postgresql.postgres.plist