Ava BASIC Amateur Development Client zig build will produce: zig-out/bin/adc adc --serial /dev/cu.usbserial-ibU1IGlC1 will connect to Ava BASIC running on an iCEBreaker connected to a macOS host. adc --socket ../soc/cxxrtl-uart will connect to a running CXXRTL simulation of the SoC.