Compiling to GHC Core

Question

I would like to create a frontend for a simple language that would produce GHC Core. I would like to then take this output and run it through the normal GHC pipeline. According to this page, it is not directly possible from the ghc command. I am wondering if there is any way to do it.

I am ideally expecting a few function calls to the ghc-api but I am also open to any suggestions that include (not-so-extensive) hacking in the source of GHC. Any pointers would help!