I did something similar using ghidramcp for digging around this keyboard firmware, repo contains the ghidra project, linux driver and even patches to the origin

I did something similar using ghidramcp for digging around this keyboard firmware, repo contains the ghidra project, linux driver and even patches to the original stock fw. https://github.com/echtzeit-solutions/monsgeek-akko-linux https://github.com/echtzeit-solutions/monsgeek-akko-linux