The studio builds for Windows in CI

.github/workflows/nightly.yml

@@ -4,8 +4,9 @@ name: Nightly
 # publishing, and the virtual camera through wgpu on Mesa's software Vulkan
 # driver, the camera in a private PipeWire session; the virtual camera's
 # v4l2loopback fallback, a module load no pull request job should make;
-# `just ci` on macOS, whose capture backends Check's Linux runner never
-# compiles; and the Flatpak, a release build of everything.
+# `just ci` on macOS and the studio's Windows build, whose capture backends
+# Check's Linux runner never compiles; and the Flatpak, a release build of
+# everything.
 
 permissions:
   contents: read
@@ -90,3 +91,20 @@ jobs:
   flatpak:
     name: Flatpak
     uses: ./.github/workflows/flatpak.yml
+
+  windows:
+    name: Windows build
+    runs-on: windows-latest
+    timeout-minutes: 90
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          persist-credentials: false
+          submodules: true
+
+      # No Nix on Windows: rustup installs the toolchain rust-toolchain.toml
+      # names on first use.
+      - name: Build
+        run: cargo build --locked -p moq-studio --features release

quest/m0/app-windows.md

@@ -24,13 +24,11 @@ the studio landed.
   [moq-dev/studio#85](https://github.com/moq-dev/studio/pull/85)) has not run
   there either.
 
-Decided 2026-11-09 (maintainer, /quest-audit): ✅ compiling for Windows is
-[its own quest](/quest/m0/windows-build.md) (rejected: folding it in here),
-since a hosted runner does it without the host this quest waits on.
+The nightly `windows-latest` job (`.github/workflows/nightly.yml`) compiles
+`moq-studio --features release` for Windows; this quest runs it.
 
 ## Required
 
-- [The studio builds for Windows in CI](/quest/m0/windows-build.md) - the crate compiling for Windows before it is run there
 - [nixos2 boots Windows for agents](/quest/m0/windows-host.md) - the Windows machine this runs on
 
 ## Related