Working hard on Cutter, an open-source, free and libre Reverse Engineering project. It's cross platform and supports tons of architectures. A debugger was recently introduced, as well as native integration with multiple Decompilers

https://cutter.re https://github.com/radareorg/cutter

using it recently to reverse engineering some Gameboy ROMs, embedded devices and the usual x86 malware

hopefully more people will come to work on this great project :)