diff --git a/.forgejo/workflows/ci.yml b/.forgejo/workflows/ci.yml
index ab4d43f..28271aa 100644
--- a/.forgejo/workflows/ci.yml
+++ b/.forgejo/workflows/ci.yml
@@ -27,11 +27,20 @@ jobs:
         run: |
           echo "Setting up Debian environment for building..."
           
-          # Add Debian repositories
-          echo "Adding Debian unstable repositories..."
-          echo "deb http://deb.debian.org/debian unstable main" | sudo tee /etc/apt/sources.list.d/debian-unstable.list
-          echo "deb-src http://deb.debian.org/debian unstable main" | sudo tee -a /etc/apt/sources.list.d/debian-unstable.list
-          
+          # Try apt-cacher-ng first, fallback to Debian's automatic mirror selection
+          echo "Checking for apt-cacher-ng availability..."
+
+          # Quick check with timeout to avoid hanging
+          if timeout 10 curl -s --connect-timeout 5 http://192.168.1.101:3142/acng-report.html > /dev/null 2>&1; then
+            echo "✅ apt-cacher-ng is available, configuring proxy sources..."
+            echo "deb http://192.168.1.101:3142/ftp.debian.org/debian unstable main" | sudo tee /etc/apt/sources.list.d/debian-unstable.list
+            echo "deb-src http://192.168.1.101:3142/ftp.us.debian.org/debian unstable main" | sudo tee -a /etc/apt/sources.list.d/debian-unstable.list
+          else
+            echo "⚠️ apt-cacher-ng not available, using standard Debian mirrors..."
+            echo "deb http://deb.debian.org/debian unstable main" | sudo tee /etc/apt/sources.list.d/debian-unstable.list
+            echo "deb-src http://deb.debian.org/debian unstable main" | sudo tee -a /etc/apt/sources.list.d/debian-unstable.list
+          fi
+
           # Add Debian keyring
           sudo apt update
           sudo apt install -y debian-archive-keyring