One of my favorites is the self-hosting Haskell compiler from the 2019 IOCCC: https://www.ioccc.org/2019/lynn/hint.html https://www.ioccc.org/2019/lynn/hint.htm

One of my favorites is the self-hosting Haskell compiler from the 2019 IOCCC: https://www.ioccc.org/2019/lynn/hint.html https://www.ioccc.org/2019/lynn/hint.html There is a series of articles on how it was built here: https://crypto.stanford.edu/~blynn/compiler/ https://crypto.stanford.edu/~blynn/compiler/