Shoot, sooooo much to learn 
I’d not come across CSS modules but the link provided by @peerreynders is most persuasive.
This also helps to put the Material Components help into context.
In phoenix there are the .eex templates which get combined as a render function inside the view (that’s my simple understanding). Can these support CSS modules? Given that we seem to be writing for the builder and not the browser.
Sorry that this forum for phx and elixir has become slightly polluted with discussion about js!
