I'm wondering what we should use instead of portal_skins + customize folder.
How can i provide such TTW override mechanism in a modern way?
i thought plone.resources should the replacement for portal_skins but, it doesn't seem to fulfill the requirements or it is not well documented how to use it in such way.
What we need:
templates in file system
overriding them TTW like with the old custom folder
I don't override templates. It normally ends up a mess as effectively replace the entire template when often you only want to make a few changes. I normally use either just diazo to change the parts of the page I want, or a combination or diazo +c.listingviews or diazo + rapido. Rapido lets you use snippets of zpt or python and diazo lets you replace the parts of the page you want with it.