diff --git a/knowledge base/kubernetes/k0s.placeholder b/knowledge base/kubernetes/k0s.placeholder
new file mode 100644
index 0000000..a9285df
--- /dev/null
+++ b/knowledge base/kubernetes/k0s.placeholder	
@@ -0,0 +1 @@
+https://k0sproject.io/
diff --git a/knowledge base/kubernetes/skaffold.placeholder b/knowledge base/kubernetes/skaffold.placeholder
new file mode 100644
index 0000000..c72e47b
--- /dev/null
+++ b/knowledge base/kubernetes/skaffold.placeholder	
@@ -0,0 +1 @@
+https://skaffold.dev/
diff --git a/knowledge base/safe.placeholder b/knowledge base/safe.placeholder
new file mode 100644
index 0000000..a2c602a
--- /dev/null
+++ b/knowledge base/safe.placeholder	
@@ -0,0 +1 @@
+https://freedium.cfd/https://medium.com/agileinsider/the-illusion-of-safe-unmasking-the-flaws-of-scaled-agile-5b0df6ef77e3