Steps:

1. Download firstbot and set that as the working directory (cd /firstbot)
2. Install robotjs (npm init -y, npm install -g robotjs)
3. Open bot.js in VS Code (code bot.js) or directly (nano bot.js); Ctrl + O and enter to save, Ctrl + X to exit
4. Customize the time and message as needed
5. Download PM2 to automate the process (npm install -g pm2)
6. Create a PM2 task for the process (pm2 start bot.js --name "first-bot")
7. Save the PM2 task (pm2 save)

Read more about Cron Format here: https://cloud.google.com/scheduler/docs/configuring/cron-job-schedules Resources and help for RobotJS and PM2 are available here: https://github.com/octalmage/robotjs/wiki/Building, https://pm2.io/docs/plus/overview/