diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index bc93e196..e7b2d358 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -50,18 +50,27 @@ jobs:
     - run: opam exec -- make test
       if: runner.os != 'Windows'
 
-    - run: opam lint example/**/*.opam
+    - run: opam lint --recursive example
 
     - name: Build examples
       if: runner.os != 'Windows'
       run: |
         set -e
         set -x
-        EXAMPLES=$(find example -maxdepth 1 -type d -not -name "w-mirage*" -not -name "r-tyxml" | grep -v "^example/0" | grep -v "^example$" | sort)
+        EXCLUDED_EXAMPLES='w-mirage*|r-tyxml|w-dream-html'
+        EXAMPLES=$(find example -maxdepth 1 -type d | grep -Ev $EXCLUDED_EXAMPLES | grep -v "^example/0" | grep -v "^example$" | sort)
         shopt -s nullglob
         for EXAMPLE in $EXAMPLES
         do
-          FILE=$(ls $EXAMPLE/*.ml $EXAMPLE/*.re $EXAMPLE/server/*.ml $EXAMPLE/server/*.re)
+          FILE=$(find $EXAMPLE -maxdepth 1 -type f -and -path "${EXAMPLE}/*.ml")
+          FILE+=$(find $EXAMPLE -maxdepth 1 -type f -and -path "${EXAMPLE}/*.re")
+          FILE+=$(find $EXAMPLE -maxdepth 2 -type f -and -path "${EXAMPLE}/server/*.ml")
+          FILE+=$(find $EXAMPLE -maxdepth 2 -type f -and -path "${EXAMPLE}/server/*.re")
+
+          if [[ "$FILE" == "" ]]; then
+              continue
+          fi
+
           EXE=$(echo $FILE | sed 's/\..*$/.exe/g')
           echo dune build $EXE
           opam exec -- dune build $EXE
diff --git a/example/z-playground/runtime/runtime.opam b/example/z-playground/runtime/runtime.opam
index a1c814d2..beda66eb 100644
--- a/example/z-playground/runtime/runtime.opam
+++ b/example/z-playground/runtime/runtime.opam
@@ -1,7 +1,12 @@
 opam-version: "2.0"
 
 synopsis: "Dream playground runtime"
+homepage: "https://github.com/aantron/dream"
+bug-reports: "https://github.com/aantron/dream/issues"
+author: "Anton Bachin <antonbachin@yahoo.com>"
+license: "MIT"
 maintainer: "Anton Bachin <antonbachin@yahoo.com>"
+
 depends: [
   "dream"
   "dune" {>= "2.0.0"}