A support engineer pastes a link into a customer chat, and they get /posts/4821. Nobody shares /posts/4821. bindBy="slug" exists to make resource URLs say something — and it comes with one mistake you can make that quietly breaks your site.
A complete Wheels 4.0 routing guide — RESTful resources, nested resources via callback vs manual nested=true, and route model binding that resolves params.post before your action runs. Plus the sharp edges: route order, the protected-helper-names trap, and how a missing record 404s.
