It's an impressive project that shows the extraordinary work of a single developer, Mike Pall. LuaJIT is not only an incredibly beautiful JIT, the current project also demonstrates it can run generated code efficiently, which is probably the hardest thing to do for a language.<p>When implementing Opa in OCaml, we run into tons of problem since the OCaml runtime was unable to run generated code efficiently. One of its author, Pierre Weis told us at the time: "it's normal, OCaml is not meant to run generated code at all".<p>As a side note regarding Luje source code: Fossil must be great and all that but having the code on a publicly available Git repository would probably bolster contributions.