Less doesn't mean none. Rails (and frameworks like it) serve multiple purposes - One is serving server side rendered pages. One is providing non-functional req

Less doesn't mean none. Rails (and frameworks like it) serve multiple purposes - One is serving server side rendered pages. One is providing non-functional requirements such as security (including browser based security, some of which is tied to the pages served, i.e., CSRF tokens). One is providing CRUD functionalities. The first one, and some of the conveniences of the second, you'd not benefit from. The last one, and some of the core functionalities of the second, you would. So, less to offer, but not 'nothing'.