tinygo/targets/arduino.json

{
	"llvm-target": "avr-atmel-none",
	"build-tags": ["avr", "avr8", "atmega", "atmega328p", "js", "wasm"],
	"linker": "avr-gcc",
	"pre-link-args": ["-nostdlib", "-T", "targets/avr.ld", "-Wl,--gc-sections", "targets/avr.S"],
	"objcopy": "avr-objcopy",
	"flash": "avrdude -c arduino -p atmega328p -P {port} -U flash:w:{hex}"
}