http://programmer.ie/tags/fallback/ Recent content in Fallback on Programmer.ie: Modern AI programming Hugo en-us Wed, 02 Sep 2026 16:30:00 +0100 http://programmer.ie/books/browser-ai-from-first-principles/15-chapter/ Wed, 02 Sep 2026 16:30:00 +0100 http://programmer.ie/books/browser-ai-from-first-principles/15-chapter/ <p>A browser-native AI feature cannot assume that its preferred local capability exists everywhere.</p> <p>The API may be absent. Hardware may be ineligible. A language pair may be unsupported. Model assets may need acquisition. Session options may be rejected. Storage pressure or a browser update may change a state that worked yesterday.</p> <p>Reliability begins by treating local availability as a runtime condition, not an installation promise.</p> <hr> <h2 id="1-unavailable-is-not-one-state">1. Unavailable is not one state</h2> <p>A useful feature distinguishes:</p>