Almost 5 years developing financial products with VA Smalltalk. No previous experience, but happy to use it, one of the reasons is that code that it's ~10 year

Almost 5 years developing financial products with VA Smalltalk. No previous experience, but happy to use it, one of the reasons is that code that it's ~10 years old it's still able to be maintained (and changed due to new requirements). The problem is almost always integration with low level apis, or some protocol missing support.