Hi, This is a question for people that have powerpc/arm as well as intel/amd machines and know how to compile the luatex repository trunk: Can you please try the latest and see if the luatex formats are now platform-independent? As of commit 2207 it should be possible to copy the generated formats from one machine to the other, even (and especially) the context mkiv format with its internal lua bytecodes. I already know that i386 <-> amd64 works, but I am interested in endianness tests. Best wishes, Taco