You are free to use this BIOS in your own OS! Just make sure to give credit. Go to the "GO HERE TO SETUP" sprite to get started. Make sure into import all of the sprites in your project.
PIXAPoLY BIOS is a BIOS made for loading and configuring Scratch OSes. Originally made by me in 2020. PIXAPoLY v3 does exist btw but its unfinished and being used for PolyOS 6. This is the flagship BIOS of PolyOS since the beginning.