Current error message:

/usr/local/bundle/gems/ffi-1.15.5/lib/ffi/types.rb:69:in `find_type': unable to resolve type 'uint32_t' (TypeError)
        from /usr/local/bundle/gems/ffi-1.15.5/lib/ffi/struct.rb:278:in `find_type'

Things which don't work

• setting or unsetting using system libraries
• using --enable-libffi-alloc Segmentation fault on M1 macOS Big Sur ffi/ffi#864
• trying to set the LD_LIBRARY_PATH in the Docker file (seems like it should be unnecessary in any case)
• getting ffi to fail directly (but only fails when require 'yara')

Notes

• Docker is using aarch-64-linux
• Darwin is using arm64-darwin21

Things it might be:

• Move /opt before /usr to search for M1 native libs first - solve the conflicts when both x64 and arm64 libs installed ffi/ffi#936 [But I can't get this to compile under docker)
• Trying to get FFI to fail with just a uint_type_t