[renerocksai]

Rayslides' 0.16 build and C bindings fail with Zig 0.17. This ports the complete application and optional embedded editor to exact 0.17.0, preserves sentinel/reflection/scalar representation contracts, and adds native Debug/Safe CI on Linux, macOS, and Windows.

Native qualification also repairs existing platform defects:

• macOS Retina window coordinates and framebuffer pixels remain coherent through resizing. Diagnostics retain an owned CPU framebuffer copy before swap through the existing post-edit readiness gate; Studio and the real Neovim overlay render normally. A review-discovered exclusive-fullscreen DPI mismatch is resolved by using and recording effective borderless mode for macOS exclusive requests; Linux and Windows retain exclusive mode.
• Windows SDK libraries link directly without Strawberry's pkg-config batch wrapper; Python tooling selects the isolated interpreter; authored media paths stay portable while filesystem fixtures use native separators.
• Save As obtains the read access required to stat its exclusive reservation and preserves externally replaced bytes after a detected SourceChangedOnDisk conflict. A deterministic real-filesystem regression verifies that preservation. The existing compare/rename gap does not provide arbitrary concurrent-file isolation.
• Live Neovim probes queue edits and typed writes in one input stream and acknowledge typed error prompts, preserving literal source/revision and discard/lifecycle assertions. Both current Mac Neovim 0.12.5 and older Linux 0.9.5 are covered without changing production editor behavior.

The immutable dependency graph is the official raylib-zig 0.17 port plus a manifest-only relay to the owning C dependency's four Windows SDK link options. Runtime and binding code are unchanged by that relay. Upstream fixes: raylib #6242, wrapper #363.

Validation:

• Native aarch64 macOS 26.6.2: updated graph and both editor configurations pass Debug/Safe (632 application tests, 1 stub test, 23 embedded-editor tests), live protocol/lifecycle probes, 26-deck syntax runtime, and Safe bundle build.
• Actual Safe Mac binary and bundle pass 900×506 Studio/Neovim nonblank framebuffer, four-slide render-state, CLI, and exit checks.
• Final source 37c7eabebb32074b89066bc0fb00e6f1a37d68b5: all six native Linux/macOS/Windows Debug/Safe jobs passed in run 37966734435, including the optional editor, live probes/syntax, Safe Linux framebuffer/no-display gates and Mac bundle.
• Linux x86_64: kernel 6.17.0-1022-azure / glibc 2.39, Neovim 0.9.5; 633 default and 655 embedded-editor tests, all live probes and 26-deck syntax gates pass in both modes. Safe Xvfb verifies actual Studio/Neovim framebuffers using Mesa llvmpipe; the no-display gate exits with an ordinary error.
• Hosted macOS 26.6.2 arm64 / Neovim 0.12.5: the same Debug/Safe application, editor and protocol/syntax gates pass; Safe app bundle builds.
• Native Windows Server 2025 AMD64: 633/633 tests pass in Debug and Safe, with interpreter/Pillow harness and actual executable version/help smoke. Windows GUI rendering, physical camera/audio hardware, and multi-monitor handoff were not newly qualified.
• The compact image is an obsolete UI reference: last refreshed August 25, before the September 11 Notes change under Zig 0.16. Its 5.32% changed-pixel delta (3% limit) records disagreement with that historical image rather than establishing a port regression. Current frame checks pass; historical images and thresholds are retained for a separately reviewed reference refresh.

docs/ZIG_0_17_MIGRATION.md records exact dependencies, platform scope, first failures, ownership checks, and retained visual-reference limits. No benchmark or production deployment was performed.

Independent Claude CLI and Astra xhigh reviews approve the exact final head. Claude first rejected the Retina exclusive path; the native reproduction shows the scissor patch at half scale. Both requested modes now pass a five-stage Safe native geometry/scissor and programmed-position readback diagnostic, with an independent nine-pixel PNG oracle, on the 2× LG HDR 4K display. The position readback checks neutral scale/offset; Cocoa OS pointer coordinates are established by pinned source analysis. Picker checks stay on the current monitor. Original rejected reviews, source-hash proof and owned-process cleanup are retained.