I recently got worried about CartoCSS project, which we use as a Mapnik configuration parser in OSM Carto. There’s only one person available for a long time and I feel this is dangerous, because he has officially stepped down recently and if he looses any interest in it, there would be not even basic support, like merging code or making the release.

If there’s somebody ready to look at the code (JavaScript) and join the project even to just keep it alive in standby mode, I would be very glad. Here is nebulon42 story and what he expects to “share the keys” (or even pass the baton) in the project:

https://github.com/mapbox/carto/issues/495#issuecomment-412987738