An uroboros program with 100 programming languages
github.com
github.com
For a somewhat deep dive on this topic, see "quines, polyglot code and other fun computations"
https://corecursive.com/quines-polyglot-code/
https://www.amazon.co.jp/%E3%81%82%E3%81%AA%E3%81%9F%E3%81%A...