diff --git a/.github/workflows/ci-cd-web-desktop.yml b/.github/workflows/ci-cd-web-desktop.yml
index 9e6df90..7be7c1e 100644
--- a/.github/workflows/ci-cd-web-desktop.yml
+++ b/.github/workflows/ci-cd-web-desktop.yml
@@ -61,7 +61,8 @@ jobs:
       - name: Determine APP_DIR (fallback safe path)
         id: appdir
         run: |
-          FALLBACK_DIR="$HOME/apps/sistema"
+          TS=$(date +%s)
+          FALLBACK_DIR="$HOME/apps/sistema.build.$TS"
           mkdir -p "$FALLBACK_DIR"
           echo "Using APP_DIR (fallback)=$FALLBACK_DIR"
           echo "EFFECTIVE_APP_DIR=$FALLBACK_DIR" >> "$GITHUB_ENV"
@@ -207,7 +208,8 @@ jobs:
       - name: Determine APP_DIR (fallback safe path)
         id: appdir
         run: |
-          FALLBACK_DIR="$HOME/apps/sistema"
+          TS=$(date +%s)
+          FALLBACK_DIR="$HOME/apps/sistema.build.$TS"
           mkdir -p "$FALLBACK_DIR"
           echo "Using APP_DIR (fallback)=$FALLBACK_DIR"
           echo "EFFECTIVE_APP_DIR=$FALLBACK_DIR" >> "$GITHUB_ENV"