tickets marketplace and digital goods e-commerce. Reliability and scalability is a key for us, we have lots of business logic and rust is super handy during refactorings. Actix has mature eco-system, hence our choice, also we leverage actors model quite intensively for scalability and logic decoupling.
Sure, sorry for late response, but ticketing one is opensource: https://github.com/bigneon/bn-api . Digital Assets is closed source but it's heavily using actors in addition to that and also using tokio-postgres instead of diesel.
Totally makes sense. No reason Rust shouldn't take over the financial space. I know F# and other functional langs made some in-roads, but haven't heard anything about how far Rust has gotten yet.