Co-authored-by: Florian <florian@private.storage>

async is neat but we don't want to wait for this thing so use the simpler
thing instead

If you use a module that cabal doesn't know about, first it warns you and then
later it fails to link because it doesn't have the module.

This makes it easy to have a data file alongside the source instead of
embedding the data in the source - which in turn makes it easier to fiddle (as
a developer) with the grid configuration.

it seems unhappy with haddocks above the `=>` or `::`?