diff --git a/slides/k8s/kubectlproxy.md b/slides/k8s/kubectlproxy.md
index c50618a1..e60b3375 100644
--- a/slides/k8s/kubectlproxy.md
+++ b/slides/k8s/kubectlproxy.md
@@ -115,6 +115,22 @@ The output is a list of available API routes.
 
 ---
 
+## OpenAPI (fka Swagger)
+
+- The Kubernetes API serves an OpenAPI Specification
+
+  (OpenAPI was formerly known as Swagger)
+
+- OpenAPI has many advantages
+
+  (generate client library code, generate test code ...)
+
+- For us, this means we can explore the API with [Swagger UI](https://swagger.io/tools/swagger-ui/)
+
+  (for instance with the [Swagger UI add-on for Firefox](https://addons.mozilla.org/en-US/firefox/addon/swagger-ui-ff/))
+
+---
+
 ## `kubectl proxy` is intended for local use
 
 - By default, the proxy listens on port 8001
@@ -135,6 +151,8 @@ The output is a list of available API routes.
 
 ---
 
+class: extra-details
+
 ## Running `kubectl proxy` on a remote machine
 
 - If we wanted to connect to the proxy from another machine, we would need to:
@@ -152,6 +170,8 @@ The output is a list of available API routes.
 
 ---
 
+class: extra-details
+
 ## Security considerations
 
 - Running `kubectl proxy` openly is a huge security risk
diff --git a/slides/kube-fullday.yml b/slides/kube-fullday.yml
index 6f4cb447..a46ab89b 100644
--- a/slides/kube-fullday.yml
+++ b/slides/kube-fullday.yml
@@ -53,9 +53,9 @@ chapters:
   - shared/hastyconclusions.md
   - k8s/daemonset.md
   #- k8s/dryrun.md
-  #- k8s/kubectlproxy.md
   #- k8s/localkubeconfig.md
   #- k8s/accessinternal.md
+  #- k8s/kubectlproxy.md
   - k8s/rollout.md
   #- k8s/healthchecks.md
   #- k8s/healthchecks-more.md
diff --git a/slides/kube-halfday.yml b/slides/kube-halfday.yml
index 415be9b8..32ea4a34 100644
--- a/slides/kube-halfday.yml
+++ b/slides/kube-halfday.yml
@@ -45,9 +45,9 @@ chapters:
   #- k8s/buildshiprun-selfhosted.md
   - k8s/buildshiprun-dockerhub.md
   - k8s/ourapponkube.md
-  #- k8s/kubectlproxy.md
   #- k8s/localkubeconfig.md
   #- k8s/accessinternal.md
+  #- k8s/kubectlproxy.md
 - - k8s/dashboard.md
   #- k8s/kubectlscale.md
   - k8s/scalingdockercoins.md
diff --git a/slides/kube-selfpaced.yml b/slides/kube-selfpaced.yml
index 27c6ef73..2d8ed86e 100644
--- a/slides/kube-selfpaced.yml
+++ b/slides/kube-selfpaced.yml
@@ -61,9 +61,9 @@ chapters:
   - k8s/record.md
 -
   - k8s/namespaces.md
-  - k8s/kubectlproxy.md
   - k8s/localkubeconfig.md
   - k8s/accessinternal.md
+  - k8s/kubectlproxy.md
 -
   - k8s/ingress.md
   - k8s/kustomize.md
diff --git a/slides/kube-twodays.yml b/slides/kube-twodays.yml
index d9bc2f8c..7ebfecc4 100644
--- a/slides/kube-twodays.yml
+++ b/slides/kube-twodays.yml
@@ -54,9 +54,9 @@ chapters:
   - k8s/daemonset.md
   - k8s/dryrun.md
 -
-  #- k8s/kubectlproxy.md
   - k8s/localkubeconfig.md
   - k8s/accessinternal.md
+  #- k8s/kubectlproxy.md
   - k8s/rollout.md
   - k8s/healthchecks.md
   #- k8s/healthchecks-more.md