The EG2000 was a TRS80 relative, with a different video card. The monochrome library permits fast drawing working on a single color (RED). Single bit and PSG sound libraries are supported.
Console disk programs (.CMD files) should be fairly portable between the EG2000 and the TRS80.
The following command will build a .CMD system file, ready for almost all the existing emulators:
zcc +trs80 -lndos -lm -create-app -subtype=eg2000disk program.c