What do we do with the config to be able to externally reach http ? (with external IP)
By default, no password is required for transfers. For security, the default listening address is the local address.
You can chage the code in main.go
addr := fmt.Sprintf("127.0.0.1:%d", c.HTTPPort) ==> addr := fmt.Sprintf(":%d", c.HTTPPort)
then rebuild by cmd: go build
[warning] Anyone can transfer your account via the network.