This is a heavily interactive web application, and JavaScript is required. Simple HTML interfaces are possible, but that is not what this is.
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Tide Alert app
tidealertapp.bsky.social
did:plc:o4tvfed4mz7yaidrvvvcgyjf
Best in class tide app for US, UK and Australia.
https://tidealert.app
Download from AppStore
https://apps.apple.com/us/app/tide-alert-noaa-usa/id1352211125