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    <title>Tony Dinh — Blog</title>
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    <description>Technical notes from the indie iOS apps I ship — SwiftUI, on-device AI, BYOK patterns, and the boring infra that makes indie iOS work.</description>
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    <lastBuildDate>Mon, 25 May 2026 10:30:00 +0700</lastBuildDate>
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      <title>Building Aside: a private on-device AI chat in 13 builds</title>
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      <pubDate>Mon, 25 May 2026 10:30:00 +0700</pubDate>
      <description><![CDATA[iOS chat app on top of Apple Intelligence's FoundationModels — no cloud, no API key, no account. Five AI integrations (Image Playground, Writing Tools, Translate, Summarize, Smart Reply) stitched into one chat. ~2,800 lines of SwiftUI + SwiftData.]]></description>
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