z88dk forums

It seems that La Churrera (MK1) has a final version now.

This is the final, definitive version of Mojon Twins Engine MK1. It won?t be updated anymore, nor maintained, not supported.

more info here: http://www.mojontwins.com/juegos_mojono ... a-english/

MK2 and MK3 still exist, but this is probably Churrera's final version.

Yeah unfortunately it looks like the mojon twins have pretty much moved away from the spectrum to the nes and other consoles.
Churerra is based on a very old version of z88dk and an old version of sp1 and will not compile with the current z88dk. It would need a dedicated and knowledgeable person to update it.