Basing on the Haskell yaml library, it is a wrapper fpr libYAML.
At this moment, it's basically only FFI layer above libYAML, without even making use of its streaming capabilities.
TODO - clean the process up.
At this moment, it's required to checkout the libYAML submodule an follow its instructions to build the library.
The FFI layer uses own helpers, those can be built with the make command (it's specified in the ipkg file, so Idris should handle this.)