Comment by neongreen

I worked at Standard Chartered and it's a bit similar, but it's hard for me to judge how much.

SC has its own Haskell compiler that produces bytecode that you can run locally, serialize, send to be executed somewhere else, etc. Most of the code still lived in a monorepo, though.

We did have a global data store (well, several) that any code could access. I was working on a more "normal" application that was still written in the SC haskell dialect but otherwise mainstream architecture -- postgres, deploying to a boring linux server, etc.

A colleague once described our dialect as "Python that looks like Haskell". This is an exaggeration, but a) we did use a lot of untyped dicts and everything-is-a-giant-relational-table structures, and b) my understanding is that the actual financial modelling was done in C++ and the SC Haskell was glueing things together. Idk.

About uv -- I did try to convert ppl to uv but it probably didn't spread further than my few colleagues at the Warsaw office.. well and also I merged a monorepo-wide documentation system that used sphinx and uv, but idk if it's still alive after I left.