Useful build targets. These must be run from the lib/ directory only, and will not work in subdirectories.
Given an input foo.ml:
$ mir-unix-socket foo.pp.ml
...will post-process the file with all the syntax extensions, and output the result in _build/foo.pp.ml. This is very useful to inspect the actual OCaml code being compiled after syntax extensions such as LWT or COW have been applied.
$ mir-unix-socket foo.inferred.mli
...will generate the default .mli for a given .ml file (useful as a skeleton). It will be in _build/foo.inferred.mli and can be copied into the source directory and edited from there.