A hand-swum wild-swimming guide — rivers, lakes & tarns, sea & coast, lidos & pools, tidal pools and waterfalls browsable by kind, each with a detail view giving where it is, the access and cost, who manages it and an honest safety note, plus a suggest-a-spot form and an about page, over the app's own /api.
Open Cold Water — Wild Swimming Guide in the no-code builder and it reshapes itself as you chat — rename it, retheme it, add screens, change the data model. Publish when you are ready. You are not editing a page: the template is a complete product, with a web app, a native mobile app, a REST API and a seeded database.