plist file to run pm2 as pm2user on macOS with environment variables, linux systemd override.conf

pm2-pm2user.conf

[Service]
Environment="MYSQL_CONN=-h mydb.domain.com -u dbadmin -pnotastrongpassword database_name"
Environment="SLACK_TOKEN=xoxb-94849484948-jfhJSdlobYIFfeFBFYHckiUUJHW19v0F"

pm2.pm2user.plist

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
  <dict>
    <key>Label</key>
    <string>com.yourdomain.uniqueid</string>
    <key>UserName</key>
    <string>pm2user</string>
    <key>KeepAlive</key>
    <true/>
    <key>ProgramArguments</key>
    <array>
      <string>/bin/sh</string>
      <string>-c</string>
      <string>/usr/local/lib/node_modules/pm2/bin/pm2 resurrect</string>
    </array>
    <key>RunAtLoad</key>
    <true/>
    <key>OnDemand</key>
    <false/>
    <key>LaunchOnlyOnce</key>
    <true/>
    <key>EnvironmentVariables</key>
      <dict>
        <key>PATH</key>
        <string>/usr/local/Cellar/node@6/6.10.0_1/bin</string>
        <key>PM2_HOME</key>
        <string>/Users/notbrain/.pm2</string>
        <key>MYSQL_CONN</key>
        <string>-h mydb.domain.com -u dbadmin -pnotastrongpassword database_name</string>
        <key>SLACK_TOKEN</key>
        <string>xoxb-94849484948-jfhJSdlobYIFfeFBFYHckiUUJHW19v0F</string>
      </dict>
    <key>StandardErrorPath</key>
    <string>/tmp/com.PM2.err</string>
    <key>StandardOutPath</key>
    <string>/tmp/com.PM2.out</string>
  </dict>
</plist>

• macOS .plist goes in ~/Library/LaunchAgents/com.domain.pm2user.plist
• linux systemd .conf file goes in /etc/systemd/system/pm2-pm2user.service.d/override.conf