diff --git a/.gitea/workflows/test-skins.yml b/.gitea/workflows/test-skins.yml
new file mode 100644
index 00000000..e214a719
--- /dev/null
+++ b/.gitea/workflows/test-skins.yml
@@ -0,0 +1,110 @@
+name: Test Skins
+
+on:
+  push:
+  pull_request:
+
+jobs:
+  link-check:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Validate links and assets
+        shell: bash
+        run: |
+          set -euo pipefail
+
+          RED="\033[31m"
+          GREEN="\033[32m"
+          RESET="\033[0m"
+
+          ERRORS=()
+
+          urldecode() {
+              printf '%b' "${1//%/\\x}"
+          }
+
+          check_http() {
+              local url="$1"
+              # HEAD first
+              if curl -Is --max-time 10 "$url" | head -n 1 | grep -qE "HTTP/.* (200|30[0-9])"; then
+                  return 0
+              fi
+              # GET fallback
+              if curl -Is --max-time 10 -X GET "$url" | head -n 1 | grep -qE "HTTP/.* (200|30[0-9])"; then
+                  return 0
+              fi
+              return 1
+          }
+
+          check_local() {
+              local path="$1"
+              path="${path#/}"  # strip leading slash
+              local decoded
+              decoded=$(urldecode "$path")
+
+              if [[ ! -e "$decoded" ]]; then
+                  return 1
+              fi
+              return 0
+          }
+
+          extract_links() {
+              local file="$1"
+
+              # Markdown links
+              grep -oE '\[[^]]*\]\([^)]*\)' "$file" \
+                  | sed -E 's/.*\((.*)\).*/\1/'
+
+              # Image markdown links
+              grep -oE '!\[[^]]*\]\([^)]*\)' "$file" \
+                  | sed -E 's/.*\((.*)\).*/\1/'
+
+              # Raw URLs
+              grep -oE 'https?://[^ )"]+' "$file"
+
+              # <img src="">
+              grep -oE '<img[^>]*src="[^"]+"' "$file" \
+                  | sed -E 's/.*src="([^"]*)".*/\1/'
+
+              # <video src="">
+              grep -oE '<video[^>]*src="[^"]+"' "$file" \
+                  | sed -E 's/.*src="([^"]*)".*/\1/'
+          }
+
+          echo "🔍 Scanning Markdown files..."
+          echo
+
+          while IFS= read -r mdfile; do
+              echo "📄 Checking: $mdfile"
+
+              while IFS= read -r url; do
+                  [[ -z "$url" ]] && continue
+                  [[ "$url" == mailto:* ]] && continue
+
+                  if [[ "$url" == http* ]]; then
+                      if ! check_http "$url"; then
+                          ERRORS+=("❌ Broken external link: $url (in $mdfile)")
+                      fi
+                  else
+                      if ! check_local "$url"; then
+                          ERRORS+=("❌ Missing local file: $url (in $mdfile)")
+                      fi
+                  fi
+
+              done < <(extract_links "$mdfile")
+
+              echo
+          done < <(find . -type f -name '*.md')
+
+          if (( ${#ERRORS[@]} > 0 )); then
+              echo -e "${RED}✖ Errors found:${RESET}"
+              for e in "${ERRORS[@]}"; do
+                  echo "$e"
+              done
+              exit 1
+          fi
+
+          echo -e "${GREEN}✔ All links OK!${RESET}"