Is it possible to use the GameCube to GBA link cable in a GameCube game?

[The3DSAddict]

Basically I had a cool idea and wanted to see if I could make it work. the idea requires a connection between a Gameboy advance and a GameCube using the GameCube to GBA link cable. so what I'm curious about is if there's a way to make features that work through that connection like sending a .GBA file to the Gameboy or reading and writing data to and from a Gameboy cartridge?

[mholtkamp]

The engine currently has no way of doing that, but someone in the Octave discord was actually hooking up GBA connectivity themselves, and I think they had some success. If they want to make a pull request into the engine, then we may have support for GBA connectivity in the future : )