Run the GitHub Windows runtime leg under the runner’s native PowerShell instead of inheriting the POSIX Bash body. POSIX and Windows now own explicit output resolution, virtual-environment setup, environment scrubbing, and keyless/live black-box commands, while portable build commands continue to use each runner’s default shell.
Put the pinned uv installation on the GitLab Windows job PATH before either the smoke or release builder invokes it. Reject a runtime executable whose basename does not match the selected platform manifest, and reject Intel macOS at platform selection instead of reporting a misleading missing artifact.
Add a complete PowerShell path to the published Python tutorial and record the three-phase shutdown-time bound in the Windows runtime decision. Workflow, Python, and bilingual documentation tests pin the resulting behavior.
Record win-x64 as the sole Windows Python carrier: node24-win-x64 builds a py3-none-win_amd64 wheel with dsh.exe, rg.exe, and both ConPTY addons; Windows arm64 remains explicitly unsupported. The note also pins native build ownership, shell-free pnpm launch, installed-wheel keyless/live gates, and the PowerShell-specific minimal snapshot.
Update the active SEA, sole-launcher, profile-runtime, installed-wheel, and publication decisions from three runtime wheels to four, preserving their existing rationale while linking the Windows extension. Contributor and runtime references now state the exact target, filenames, sidecars, snapshot ownership, and five-wheel release set in both languages.