Update build_linux.yaml

.gitea/workflows/build_linux.yaml

@@ -34,15 +34,29 @@ jobs:
           nix develop --command cmake --build build \
             --parallel 2
 
-      - name: Check binary
+      - name: Install ELF inspection tools
         run: |
-          nix run nixpkgs\#findutils -- build -type f -executable
-          nix run nixpkgs\#findutils -- build -type f -executable \
-            -exec sh -c '
-              file "$1"
-              readelf -l "$1" | grep interpreter || true
-              readelf -d "$1" | grep -E "RPATH|RUNPATH|NEEDED" || true
-            ' _ {} \;
+          nix profile install \
+            nixpkgs#binutils \
+            nixpkgs#file \
+            nixpkgs#gnugrep
+
+      - name: Check binaries
+        run: |
+          for bin in build/server/server build/engine/engine; do
+            echo "========== $bin =========="
+
+            file "$bin"
+
+            echo "--- INTERPRETER ---"
+            readelf -l "$bin" | grep 'Requesting program interpreter' || true
+
+            echo "--- DYNAMIC SECTION ---"
+            readelf -d "$bin" | grep -E 'RPATH|RUNPATH|NEEDED' || true
+
+            echo "--- NIX STORE REFERENCES ---"
+            strings "$bin" | grep '/nix/store' || true
+          done
 
       - name: Upload build
         uses: actions/upload-artifact@v4
@@ -50,6 +64,25 @@ jobs:
           name: VulkanEngine-linux-x86_64
           path: build/
 
+      - name: Verify Nix independence
+        run: |
+          mkdir -p /tmp/vulkan-test
+          cp build/server/server /tmp/vulkan-test/
+          cp build/engine/engine /tmp/vulkan-test/
+
+          echo "=== Nix references ==="
+          if strings /tmp/vulkan-test/server | grep -q '/nix/store'; then
+            echo "ERROR: server contains /nix/store reference"
+            exit 1
+          fi
+
+          if strings /tmp/vulkan-test/engine | grep -q '/nix/store'; then
+            echo "ERROR: engine contains /nix/store reference"
+            exit 1
+          fi
+
+          echo "OK: no /nix/store references"
+
       - name: Notify routine
         if: always()
         run: |