add nix build

Author: deemp

.github/workflows/ci.yml

@@ -60,7 +60,12 @@ jobs:
           ROOT: ${{ env.ROOT }}
           CACHE: ${{ env.CACHE }}
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-
+      
+      - name: Build with Nix
+        run: |
+          cd ${{ env.ROOT }}
+          nix build
+      
       - name: Prepare ${{ env.ARTIFACTS_DIR }} dir
         run: |
           cd ${{ env.ROOT }}