mustache templates for define sections of pages makes sense. but what I cannot figure out is if I want to use a mustache template for a specific piece of content (ie output.main_content) how do I do that? for example, let's say I have a filter that looks for the a particular phrase . . . I can create the filter. But if my filter switches that phrase out for a particular URL that is styled how do I use a mustache template for that? where does the template go in the theme? how is it called in the filter? Or have I answered my own question here which is is really this cannot be done?
Read the Mustache Moodle doc it tells you all that you need to know.
https://moodle.org/mod/forum/discuss.php?d=359735