Not so much but it's an old architecture that dates back before docker/container techs came around, so it's kind of a pain. We're looking into a better architecture that would allow us to add any language in a couple hours
We have a lot on our plates right now so adding new languages isn't the main priority, however we add languages based on the number of upvotes on suggestions in our dedicated forum thread
https://www.codingame.com/forum/t/please-add-the-following-p....
Do not hesitate to go there and vote/ask for Common Lisp
https://www.codingame.com/forum/t/please-add-the-following-p...