tinygo/targets/avr.json

{
	"build-tags": ["avr", "js", "wasm"],
	"goos": "js",
	"goarch": "wasm",
	"compiler": "avr-gcc",
	"linker": "avr-gcc",
	"ldflags": [
		"-T", "targets/avr.ld",
		"-Wl,--gc-sections"
	]
}