page-now.phptemplate for the / now page is automatically drawn via the file name and no further work is actually necessary, but if the page should be accessible under a different slug (for whatever reason), you can also use the template for the
/** Template Name: "/now" Template */header for make any page available.
Another alternative would be
post_classto expand, but a dedicated template simply offers more options. A nice example is Dominik Schwinds https://lostfocus.de/now/ , which he updates via the category “nownownow”.