Add cross-platform Nemotron transcription #148

	name: rust-macos
	on:
	pull_request:
	paths:
	- "*/.rs"
	- "**/Cargo.toml"
	- "**/Cargo.lock"
	- "rust-toolchain.toml"
	- "native/**"
	- ".cargo/config.toml"
	- ".github/workflows/rust-macos.yaml"
	- "flake.lock"
	- "flake.nix"
	concurrency:
	group: ${{ github.workflow }}-${{ github.ref }}-rust-macos
	cancel-in-progress: true
	permissions:
	contents: read
	actions: write
	id-token: write
	jobs:
	test:
	# WispAudioKit uses APIs that only exist on macOS 26
	# (Speech.SpeechAnalyzer, Core Audio Process Tap) so we need a Tahoe
	# runner. `macos-26` is the GitHub-hosted runner image for it.
	runs-on: macos-26
	steps:
	- uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
	- name: Select Xcode
	run: \|
	sudo xcode-select -s /Applications/Xcode.app/Contents/Developer
	xcrun swift --version
	xcrun --find metal
	- uses: ./.github/actions/setup-nix
	- uses: Swatinem/rust-cache@c19371144df3bb44fab255c43d04cbc2ab54d1c4 # v2.9.1
	with:
	cache-bin: "false"
	cache-workspace-crates: "true"
	cache-on-failure: "true"
	cmd-format: nix develop .#ci --quiet -c {0}
	- run: swift test --package-path native/WispAudioKit
	# Builds the WispAudioKit Swift static library through build.rs and
	# exercises the FFI round-trip via the smoke test in wisp-audiokit.
	- run: nix develop .#ci --quiet --command cargo test -p wisp-audiokit
	# Exercises AppModel/session reducer regressions where GPUI and the
	# WispAudioKit bridge can link against the Metal toolchain.
	- run: nix develop .#ci --quiet --command cargo test -p wisp-desktop --all-targets

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