I'm now registered as co-maintainer of Haskell CSS Syntax on Hackage, since that package appeared to be unmaintained. And I've released CSS-Syntax 0.1.0.1, compatible with Text 2!
That'll help make it easier for others to contribute to the Argonaut Stack, avoids some dependency conflicts...
See if I can catch wereHamsters attention to see how they want to play this... Haven't had much luck previously, hence why I asked Hackage for these permissions...