I guess this was a fun article but sort of an ad for the author’s consultancy. If you want to get started with Haskell, the gentlest intro is probably the online book https://learnyouahaskell.com .

If your organization has something scary and weird that you need help understanding, whether it’s an internal app, a legacy database, or a subtle business process, send me an email and tell me about it.

Don’t mind if i do, we have a scary, weird thing in our office. No one’s ever had the courage to even try to talk to it.