updating to use matrix

.github/workflows/build.yml

@@ -8,7 +8,14 @@ on:
 
 jobs:
   build:
-    runs-on: self-hosted
+    runs-on: ${{ matrix.target.os }}
+    matrix: 
+      target:
+        - zig: x86_64-linux-gnu
+          os: self-hosted-linux
+      target:
+        - zig: x86_64-windows
+          os: self-hosted-windows
 
     steps:
     - name: Checkout repository
@@ -18,7 +25,7 @@ jobs:
 
     - name: Build projects
       working-directory: ./projects
-      run: zig build install
+      run: zig build install -Dtarget=${{ matrix.target }}
 
     - name: Upload build artifacts
       uses: actions/upload-artifact@v4