Building 19 - Siri AI Opens to Developers

Siri AI and Developer Access

• Apple is expanding Siri’s ability to work with third-party apps, reportedly in iOS 27.3. Apps will be able to expose custom actions and content through App Intents, rather than relying only on Apple’s predefined Siri “domains,” such as calendars and reminders.
• App Intents connect app capabilities with Siri and Shortcuts. Developers choose which actions are available; Siri can then use them, potentially combining actions across apps. Matthew Cassinelli described the system as similar in concept to MCP, but limited to Apple’s platform and designed around defined permissions.
• The change could enable spoken requests that pass details directly to an app—for example, ordering a particular food—rather than requiring users to state a rigid command and fill in each step. It could also make Shortcuts more useful by giving it access to more actions from participating apps.
• The panel sees this as groundwork for a more agentic Siri, but not a fully autonomous assistant yet. Limits discussed include the number of available actions, the need for apps to adopt the framework, and Siri’s ability to reliably choose and chain the right tools. Third-party Siri integrations reportedly cannot be tested broadly through public TestFlight builds.
• A major point of debate was whether future computing will move toward asking an assistant to do tasks instead of opening apps. The panel also argued that apps and their interfaces will still matter: people may want actions to work both “headlessly” and through a useful visual interface.
• Privacy and user control were recurring themes. App Intents expose specific developer-approved actions rather than giving an assistant unrestricted access to a device. The panel contrasted that with handing broad access to external AI tools, while noting that Apple still needs to improve Siri’s usefulness and keep pace with rapidly advancing competitors.
• Andy Ihnatko cautioned that AI is still unreliable enough to require checking its work. He shared a metaphor from former NASA manager Barbara Thompson: using AI is like painting a room—the important work is carefully masking the areas where it should not go.
• Doc Rock described possible automation uses, such as setting up a livestream, changing app profiles, controlling lights, and handling guest-related administrative tasks. These were examples of potential workflows, not a tutorial.

iPhone Duo: Hinge Concerns and Hands-On Impressions

• The panel discussed reports that some iPhone Duo displays or hinges were failing. A rumor attributed the issue to a defective or incorrectly produced hinge component in a limited manufacturing batch, rather than a flaw in the overall design. The discussion stressed that this explanation was unconfirmed.
• The panel said some reports suggested affected devices might be identifiable by serial number, and that Apple had reportedly advised Genius Bar staff to treat certain failures as a known issue rather than automatically assume user damage. They recommended checking Apple’s guidance rather than relying on social-media speculation.
• Practical buying advice: use the return period to assess the device, and consider waiting if uncertain. Panelists noted that a foldable has different durability expectations from a conventional iPhone; the hinge may be vulnerable to dust and sand, and drops or beach use could be riskier.
• The Duo’s smaller outer display and other software details drew criticism, while some users reportedly liked the device. One reviewer’s summary, quoted on the show, was that unfolded it feels like the best iPhone, but folded it feels like the worst.
• Camera quality was part of the buying discussion. Doc Rock said he prioritizes camera improvements when upgrading; the panel compared iPhone images with dedicated-camera results and discussed using photo apps, editing, and custom looks to narrow the difference. This was discussion rather than a formal review of the iPhone 18 Pro.

iPad mini, OLED Laptops, and Apple Hardware

• The panel discussed the new OLED iPad mini as an appealing travel device, especially for people who find larger iPads or laptops cumbersome. Its higher price prompted debate over whether buyers would be better served by a larger iPad with more storage.
• The mini’s portability was weighed against productivity needs, including typing. Andy Ihnatko mentioned that he plans to discuss compact folding keyboards; Doc Rock described using voice dictation while traveling.
• The new OLED touchscreen MacBooks were also discussed. Panelists welcomed the return of the illuminated Apple logo, but noted there is no ordinary Settings control to disable it. A command-line method and the Backlow.app utility were mentioned; the utility reportedly also offers effects such as pulsing the logo with music.
• Opinions were divided on touchscreens in laptops. Some panelists prefer not to touch their displays, while others saw touch as a potentially convenient addition. The discussion noted that Apple has made some interface adjustments but has not redesigned macOS around touch.

Other Technology and Product News

• The iPod’s 25th anniversary: The original iPod went on sale on November 10, 2001. The panel recalled its “1,000 songs in your pocket” appeal and discussed renewed interest in dedicated music players, including the appeal of owning local files and playlists instead of relying solely on streaming services.
• Fake Homebrew installer: The panel warned that a malicious installer impersonating Homebrew had been linked in reports to a major Binance theft. The practical advice was to get Homebrew from its official site, brew.sh, and be cautious about shell commands or scripts suggested by search results or AI tools.
• LEGO: Christopher Nolan’s Interstellar is getting a LEGO set. Separately, an iMac G3 LEGO proposal was said to have reached LEGO Ideas’ consideration threshold.
• External displays and small devices: Andy described using an Android phone with an external display for a basic desktop-like setup. Doc Rock noted that an iPhone can output to a display, but in his experience it mirrors the screen rather than offering a desktop mode like Samsung DeX.
• ESP32 project: The panel briefly discussed a small, 3D-printed Mac-style device using an ESP32 display, as well as the growing ability to use AI tools to help build custom hardware and software projects.

Picks of the Week

• Andy Ihnatko: Patrick Stewart’s one-man performance of A Christmas Carol, recommended as an especially memorable holiday listen. He prefers owning a copy, such as on CD, so it can be kept independently of a particular service.
• Doc Rock: RigMap, a free utility that uses a Mac system-profiler export to map connected hardware and help identify possible port, hub, or connection problems. Doc noted it does not collect data.
• Matthew Cassinelli: The compact Xbox Nano Controller, which can connect to Wi-Fi for cloud gaming, and The Legend of Zelda: Ocarina of Time on Switch 2.

Reviews and Guides

The episode includes informal product analysis of the iPhone Duo and OLED iPad mini, along with camera comparisons and practical buying advice. It does not present a formal step-by-step tutorial; RigMap is the clearest hands-on utility recommendation.

Main Speakers and Sources

• Speakers: Leo Laporte (host), Andy Ihnatko, Doc Rock / Sean Boyd, and Matthew Cassinelli.
• Other sources mentioned: Apple Insider and the leaker Kang for the iPhone Duo hinge reports; Barbara Thompson for the AI “paint that never dries” analogy; and Doc Rock’s colleague Matthew Stagliniano as the creator of RigMap.