diff --git a/.forgejo/workflows/ci.yml b/.forgejo/workflows/ci.yml
index 45d4082..206b86b 100644
--- a/.forgejo/workflows/ci.yml
+++ b/.forgejo/workflows/ci.yml
@@ -48,6 +48,13 @@ jobs:
           extensions: pdo_pgsql, mbstring, xml, dom, intl
           coverage: pcov
 
+      # Debugging cache miss issue (#16) — check if /usr/local/php exists after setup-php
+      - name: Debug PHP install path
+        run: |
+          ls -la /usr/local/php 2>&1 || echo "/usr/local/php does not exist"
+          which php
+          php -v
+
       # Debugging cache miss issue (#16) — ACTIONS_STEP_DEBUG enabled to inspect save/restore
       - name: Cache Composer dependencies
         uses: https://data.forgejo.org/actions/cache@v4
@@ -56,6 +63,10 @@ jobs:
           key: composer-${{ hashFiles('composer.lock') }}
           restore-keys: composer-
 
+      # Debugging cache miss issue (#16) — check if ~/.composer/cache exists before/after install
+      - name: Debug composer cache path (before install)
+        run: ls -la ~/.composer/cache 2>&1 || echo "~/.composer/cache does not exist yet"
+
       - name: Install dependencies
         run: composer install --no-interaction --prefer-dist