diff --git a/.gitea/workflows/probe.yml b/.gitea/workflows/probe.yml
new file mode 100644
index 0000000..cfaee7e
--- /dev/null
+++ b/.gitea/workflows/probe.yml
@@ -0,0 +1,17 @@
+name: Runner Probe
+on:
+  pull_request:
+    branches: [main]
+jobs:
+  probe:
+    runs-on: ubuntu-latest
+    steps:
+      - name: capabilities
+        run: |
+          echo "=== PATH ==="; echo "$PATH"
+          echo "=== interpreters ==="
+          for c in python python3 node npx bash sh git curl wget apt apk pip pip3; do command -v $c >/dev/null 2>&1 && echo "HAVE $c: $(command -v $c)"; done
+          echo "=== os ==="; cat /etc/os-release 2>/dev/null | head -4
+          echo "=== docker visible? ==="; command -v docker && timeout 10 docker images 2>&1 | head -10
+          echo "=== internet? ==="; timeout 8 curl -sI https://github.com >/dev/null 2>&1 && echo ONLINE || echo OFFLINE
+          exit 0