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Planned platforms

Checked against c1b2fa4 on 2026-11-10. The files it covers are unchanged since.

These are the targets DECISIONS.md commits to that have no host on main. None of them has code yet unless the list says so.

  • Windows: a host on the Windows App SDK (WinUI 3). Driving WinUI 3 from Rust is one of the open hard problems in DECISIONS.md.
  • Android Wear OS and Android TV: through the Compose host, as the Apple host covers watchOS and tvOS. Not started.
  • Android Auto: template serialization, as CarPlay has on Apple.
  • Web: the browser’s own DOM, no renderer (Web).
  • Embedded Linux: the full stack.
  • Microcontrollers: a small no_std DOM of niso’s own behind the same C API, styles resolved at build time, Taffy for layout on the device, and LVGL for drawing.

watchOS, tvOS, visionOS and CarPlay used to be on this list; they’re built now, in the Apple host.