Sort of. I dealt with a large smalltalk system with it's own datastore. Finding smalltalk devs was painful. Training new ones? It was a mess. The dev environments didn't seem to port correctly to modern linux systems - mac? forget it, we could never work out contracts with Cincom Systems to get proper licenses - they would demand us pay a portion of revenue with audit rights (wtf), staging environments were layers of hacks, smalltalk could work on port 80 but making it work with apache/nginx/load balancers was always a mess, smalltalk itself was covered in bugs and would crash for no apparent reason. All new devs knew learning smalltalk was a waste of their future job prospects - they also had no good mentors. Good luck finding things on stackoverflow. The smalltalk contractors that could help would just raise their price so high it turned into extortion (one of them even wanted a portion of gross revenue). These contractors would delete histories, use hand written journals, hide documentation, refused to train anyone, not use version control, quit in the middle of meetings -- and they all were friends - it was a total shakedown. "Just pay them more" never really worked out for us.