[williamaadams]

It really depends on your use case. I write all my tight loop code in LuaJIT itself, rather than calling out to C. Lots of people use LuaJIT as the glue to highly optimized long lived and proven C code libraries.

The case for doing the glue in Lua is the fact that script is arguably easier to prototype in. So, depends on your particular application space. C can be a lot more error prone, at least when it comes to memory management, but this is a general argument for garbage collected vs not.