updated ruby install to system path

.github/workflows/simple-release.yml

@@ -139,36 +139,39 @@ jobs:
 
       - name: Install fpm (system ruby) and package pacman
         run: |
+            # Insert as the 'run:' body for the Arch job step that installs fpm and packages
             set -euo pipefail
 
-            # Update package DB and install ruby and build tools
+            # Update and install ruby + build tools
             pacman -Syu --noconfirm
             pacman -S --noconfirm ruby base-devel
 
-            # Install fpm system-wide (Actions container runs as root)
-            gem install --no-document fpm
+            # Install fpm to /usr/local/bin so the executable is in a system path
+            # Pin the version for reproducibility
+            gem install --no-document -v '1.16.0' fpm -n /usr/local/bin
 
-            # Sanity checks
-            echo "ruby version: $(ruby -v)"
-            echo "gem env:"
-            gem env
-
-            # Ensure system gem bin dir is on PATH for subsequent steps (usually /usr/local/bin)
+            # Ensure /usr/local/bin is available to subsequent workflow steps
             echo "/usr/local/bin" >> $GITHUB_PATH
 
-            # Verify fpm is available
+            # Immediate sanity checks
+            echo "ruby: $(ruby -v)"
+            echo "gem env:"
+            gem env
             if ! command -v fpm >/dev/null 2>&1; then
-            echo "fpm not found on PATH; gem installation may have gone to user dir. Diagnostics:"
-            ruby -e "puts Gem.user_dir"
-            ls -la "$(ruby -e 'print Gem.user_dir')/bin" || true
-            exit 1
+              echo "fpm still not found on PATH; diagnostics:"
+              ruby -e "puts Gem.user_dir"
+              ls -la "$(ruby -e 'print Gem.user_dir')/bin" || true
+              exit 1
             fi
+            fpm --version
 
-            # Package with fpm
+            # Build package
             VERSION="$(poetry version -s)"
             mkdir -p dist
             chmod +x dist/android-file-handler
-            fpm -s dir -t pacman -n android-file-handler -v "$VERSION" --architecture x86_64 --prefix /usr/local/bin -p "dist/android-file-handler-${VERSION}-1-x86_64.pkg.tar.zst" dist/android-file-handler
+            fpm -s dir -t pacman -n android-file-handler -v "$VERSION" \
+              --architecture x86_64 --prefix /usr/local/bin \
+              -p "dist/android-file-handler-${VERSION}-1-x86_64.pkg.tar.zst" dist/android-file-handler
 
       - name: Upload Arch package
         uses: actions/upload-artifact@v4