For hs-to-coq to grow into a mighty asset, more community involvement in adding supported libraries could be invaluable.
In the wc example, prior examples containers and transformers are viewed as dependencies (see wc/lib/_CoqProject). This suggests to me that building out the examples dir is one lever to press for
It is my guess that this would be a high-value tutorial to write. If no one's written it by the time I figure out how to do basic hs-to-coq codegen on a small library, I'll certainly write it!