Framework adapters

@platform/sdk is framework-agnostic on purpose, so the ergonomic glue for a specific framework ships as separate, optional companion packages you install only if you’re on that framework:

• @platform/sdk-angular — DI tokens, typed surface injection, signal⇄channel binding, and host self-sizing.
• @platform/sdk-react — hooks for surface activation, params, and cross-frame state.

The core works without them

A companion is pure convenience over the core’s public API. On Vue, Svelte, an older framework, or none, install just @platform/sdk and wire the small amount of glue yourself — every core primitive (connect, conn.activate, defineStateChannel, surfaceHost, …) is framework-free. The how-to guides — surfaces, modals, cross-frame state — use the core directly.

Opt-in and supported versions

Each companion declares its framework as a wide-range peerDependency, satisfied by your own installed framework — never a hard dependency, never pinned:

Package	Peer dependency	Install when
@platform/sdk-angular	@angular/core >=21	your app is Angular ≥ 21
@platform/sdk-react	react >=18	your app is React ≥ 18

The core itself carries no framework dependency (not even peer). A consumer outside a supported range, or on another framework, uses @platform/sdk directly.

Versioning

The companions version in lockstep with the core — same version number, released together — so there is one version to reason about and no support matrix to track. Pin them together (e.g. @platform/sdk@1.3.0 with @platform/sdk-angular@1.3.0).