HOWTO: You’re seeking a usage pattern not unlike Github where you and perhaps others will clone or checkout the remote (upstream) repository:
My use of submodules in git repos tends towards the simple. This tip illustrates using other Git repositories as submodules in the use case where we intend to be a mere consumer of the other project within ours. It’s a common pattern utilized by web themes and vim/Neovim scripts.
Problem: You need to run Hugo in “watch” mode during development but rather
than bind to the default
localhost:1313 you need to bind Hugo to an
externally visible IP address - which for those of us not chained to one work
location may change frequently. An externally accessible IP is particularly
helpful for virtual machine users that may need to test browsers available on
other real or virtual machines.