Also very cool!

I was fortunate enough to work at Jet.com before Walmart completely destroyed it, which was an F# shop. I really liked it, and I never really felt "limited" by it.

The stuff I was working on didn't have nearly the same requirements as high-frequency trading like Jane Street does though. I never did any super low-latency stuff with F#, so it's tough for me to say how well it fair with that kind of environment.

Too bad they didn't use their namesake:

https://mercurylang.org/

Would honestly be a lot more interesting than Haskell.

Thank you for mentioning this, because—not having followed the link—I thought someone was using Mercury for a backend. And... I wasn't sure I was prepared to follow that link.

Anyone coding Mercury out there?

ODASE uses it: https://www.mercurylang.org/documentation/papers/mc_swese_20...

https://www.odase.io/

Standard Chartered also uses their variation of Haskell.

They also use regular Haskell these days.

Yeah, I actually interviewed for a Haskell position there in 2023. They didn't hire me, but it was kind of fun to do technical questions in Haskell for an interview instead of the boring JavaScript or Python that I usually use.

Why does Mercury not use ... Mercury? https://mercurylang.org/