diff --git a/.gitea/workflows/build-and-publish.yaml b/.gitea/workflows/build-and-publish.yaml
index 814c52f..3b5bc2b 100644
--- a/.gitea/workflows/build-and-publish.yaml
+++ b/.gitea/workflows/build-and-publish.yaml
@@ -29,8 +29,9 @@ jobs:
 
           echo "Changed packages: $CHANGED"
 
-          # Sync pacman DB so -s can pull current versions (Arch rolling)
-          sudo pacman -Syu --noconfirm
+          # Sync pacman DB so -s can pull current versions (Arch rolling).
+          # -Sy only: full -Syu overwhelms the shared runner host with I/O.
+          sudo pacman -Sy --noconfirm
 
           for pkg in $CHANGED; do
             echo "==> Building $pkg"