Minimum demo of nodemcu-firmware-build-as-github-action (BAGA), using
all-defaults config.
See also: the BAGA repo
Using a separate repo because the Github Actions cron trigger seems to only be able to build the master branch.
The only important file here is .github/workflows/build_firmware.yaml.
The top-level symlink build_firmware.yaml is just for my convenience.
I consider the user_*.h build config header files "legacy" because
I'm working on a better way to configure it.
Put them in esp8266.app.include/, just without the user_ prefix.
see esp32.sdkcfg/
MIT