Here is the link to the VM image that I used for SoC dev.
http://users.ece.cmu.edu/~dpratyus/VM-341_S20_GAMEBOI.tar.gz
Further instructions/information can be found at https://github.com/tchannn/Game-Boi/tree/SoC/SoC, guide is in SoC.pdf.
Have fun VM’ing!