diff --git a/.github/workflows/nightly.yml b/.github/workflows/nightly.yml
index ea153b75..98bf93d8 100644
--- a/.github/workflows/nightly.yml
+++ b/.github/workflows/nightly.yml
@@ -4,8 +4,8 @@ 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; and
-# `just ci` on macOS, whose capture backends Check's Linux runner never
-# compiles.
+# `just ci` on macOS, and the studio's Windows build, whose capture backends
+# Check's Linux runner never compiles.
 
 permissions:
   contents: read
@@ -86,3 +86,20 @@ jobs:
 
       - name: Check
         run: nix develop --command just ci
+
+  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 capture