$ brew tap tinygo-org/tools
$ brew install tinygo
$ tinygo version
$ brew tap tasanakorn/homebrew-esp32
$ brew install xtensa-esp32-elf
$ cd ~/Downloads/basicblinky.zip\ Contents
# must include target or tries to compile for host -> undefined symbols
# must be in right spot in cmdline
$ tinygo build -o main -target esp32c3 ./main.go
# reset to boot mode
# kill Arduino IDE so port is free
$ tinygo flash -target esp32c3
// restart boardlooks like no wifi support yet tinygo-org/tinygo#2138
lots of doc issues for tinygo
Basicblinky source available at https://github.com/codepope/basicblinky