Disable/Enable PostgreSQL Autostart on Mac OS X Lion

com.edb.launchd.postgresql-9.1.plist

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN"
        "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>Disabled</key>
    <false/>
        <key>Label</key>
        <string>com.edb.launchd.postgresql-9.1</string>
        <key>ProgramArguments</key>
        <array>
                <string>/Library/PostgreSQL/9.1/bin/postmaster</string>
                <string>-D/Library/PostgreSQL/9.1/data</string>
        </array>
        <key>RunAtLoad</key>
        <true/>
    <key>UserName</key>
    <string>postgres</string>
    <key>KeepAlive</key>
    <dict>
         <key>SuccessfulExit</key>
         <false/>
    </dict>
</dict>
</plist>

pgSQLautorun.sh

## Stop PostgreSQL from auto starting in Mac OS X 10.7.x (Lion)
sudo launchctl unload -w /Library/LaunchDaemons/com.edb.launchd.postgresql-9.1.plist

## Enable PostgreSQL to auto start in Mac OS X 10.7.x (Lion)
sudo launchctl load -w /Library/LaunchDaemons/com.edb.launchd.postgresql-9.1.plist

## Manually Start PostgreSQL
## su as user "postgres" and run server: 
cd /Library/PostgreSQL/9.1/bin/
./pg_ctl -D /Library/PostgreSQL/9.1/data/ start

## Manually Stop PostgreSQL
./pg_ctl -D /Library/PostgreSQL/9.1/data/ stop

## Note:
## - Without "sudo" the commands seem to run successfully but don't take effect
## - Contents of com.edb.launchd.postgresql-9.1.plist in attached file (Permission MUST be: -rw-r--r--  1 root  wheel)

Used for postgres 13, macOS big sur.