A missing 'good' - the reference implementation is extremely easy to extend with existing C or lua libraries. E.g. embed sqlite.c and bindings to it and all of

A missing 'good' - the reference implementation is extremely easy to extend with existing C or lua libraries. E.g. embed sqlite.c and bindings to it and all of penlight (a bunch of standard library like utilities written in lua). There are some package managers. However concatenating all the source plus a bunch of libraries into one .c file also works great, My bootstrap/install is to clone that one file via git and feed it to clang.