Tips for JavaScript email lead automation script business

So I've recently just created a JavaScript Puppeteer script for a client who's a car salesman at Chrysler. The salespeople at the company get auto-emailed new leads to them through a lead distribution system provided by Keyloop (an automotive tech solutions company). To get a lead, you need to be the first to click on the "reply by email" button inside the email. I wrote a script that monitors his Outlook inbox and opens new emails from the specific lead distributor email and automatically opens the link to pick up a new lead when it comes. I'm wondering if anyone has any tips for scaling or adapting this to make more money? The script can be adapted for sure but it's main purpose right now is monitor an email inbox, listen for specific emails by specific senders, and extract/click on links in those emails.

Would love to get your guys' insights into this!

What you did it's a custom dev for a very specific narrow goal.
Why not contact similar companies with a similar need.

I'm looking into contacting employees at other companies that might also use a similar lead distribution by email system. The issue is that I can only really get one client per big car company (not a lot) since this is useful for individual car salesman (they get to beat out other car salesman at their company).

Look into other industries where speed-to-lead is crucial, such as real estate, insurance, or any high-stakes sales environments where leads are distributed via email.