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Using the Serverless framework, we can quickly create a CRON job with AWS Lambda and Python to check for keywords in a forum topic. We will use the very popular Python packages Requests and BeautifulSoup to parse the HTML code. We are going to monitor Keywords on IndieHackers.com a popular forum for bootstrapped founders. It's really easy with Slack, you just have to create an app to get a webhook URL as explained here. The deployment command: "voilà" for the code.