diff --git a/_templates/argo_app.template b/_templates/argo_app.libsonnet
similarity index 82%
rename from _templates/argo_app.template
rename to _templates/argo_app.libsonnet
index 4f629e9..10e76d1 100644
--- a/_templates/argo_app.template
+++ b/_templates/argo_app.libsonnet
@@ -1,5 +1,4 @@
-# vim:ft=jsonnet:
-local base = import "argo_base.template";
+local base = import "argo_base.libsonnet";
 
 base + {
 	repo:: error "repo must be defined",
diff --git a/_templates/argo_base.template b/_templates/argo_base.libsonnet
similarity index 97%
rename from _templates/argo_base.template
rename to _templates/argo_base.libsonnet
index 62c900f..8f697f9 100644
--- a/_templates/argo_base.template
+++ b/_templates/argo_base.libsonnet
@@ -1,4 +1,3 @@
-# vim:ft=jsonnet:
 {
 	name:: error "name must be defined",
 	namespace:: $.name,
diff --git a/_templates/argo_helm_app.template b/_templates/argo_helm_app.libsonnet
similarity index 87%
rename from _templates/argo_helm_app.template
rename to _templates/argo_helm_app.libsonnet
index 085f643..8e4a126 100644
--- a/_templates/argo_helm_app.template
+++ b/_templates/argo_helm_app.libsonnet
@@ -1,5 +1,4 @@
-# vim:ft=jsonnet:
-local base = import "argo_base.template";
+local base = import "argo_base.libsonnet";
 
 base + {
 	repo:: error "repo must be defined",
diff --git a/k8s-manifests/cert-manager.jsonnet b/k8s-manifests/cert-manager.jsonnet
index 69a7095..a3d30e5 100644
--- a/k8s-manifests/cert-manager.jsonnet
+++ b/k8s-manifests/cert-manager.jsonnet
@@ -1,5 +1,5 @@
 # vim:expandtab:
-local helmapp = import "../_templates/argo_helm_app.template";
+local helmapp = import "../_templates/argo_helm_app.libsonnet";
 
 [
 helmapp + {
diff --git a/k8s-manifests/ingress-nginx.jsonnet b/k8s-manifests/ingress-nginx.jsonnet
index cdad273..ccdede9 100644
--- a/k8s-manifests/ingress-nginx.jsonnet
+++ b/k8s-manifests/ingress-nginx.jsonnet
@@ -1,5 +1,5 @@
 # vim:expandtab:
-local helmapp = import "../_templates/argo_helm_app.template";
+local helmapp = import "../_templates/argo_helm_app.libsonnet";
 
 [
 helmapp + {
diff --git a/k8s-manifests/keel.jsonnet b/k8s-manifests/keel.jsonnet
index 1dbade5..b7c2f5b 100644
--- a/k8s-manifests/keel.jsonnet
+++ b/k8s-manifests/keel.jsonnet
@@ -1,5 +1,5 @@
 # vim:expandtab:
-local helmapp = import "../_templates/argo_helm_app.template";
+local helmapp = import "../_templates/argo_helm_app.libsonnet";
 
 [
 helmapp + {
diff --git a/k8s-manifests/monitoring/loki-stack.jsonnet b/k8s-manifests/monitoring/loki-stack.jsonnet
index 56924af..0237c12 100644
--- a/k8s-manifests/monitoring/loki-stack.jsonnet
+++ b/k8s-manifests/monitoring/loki-stack.jsonnet
@@ -1,5 +1,5 @@
 # vim:expandtab:
-local helmapp = import "../../_templates/argo_helm_app.template";
+local helmapp = import "../../_templates/argo_helm_app.libsonnet";
 
 [
 helmapp + {
diff --git a/k8s-manifests/monitoring/prometheus-stack.jsonnet b/k8s-manifests/monitoring/prometheus-stack.jsonnet
index 8b4dfb5..d928ecc 100644
--- a/k8s-manifests/monitoring/prometheus-stack.jsonnet
+++ b/k8s-manifests/monitoring/prometheus-stack.jsonnet
@@ -1,7 +1,7 @@
 # vim:expandtab:
 # see https://blog.ediri.io/kube-prometheus-stack-and-argocd-23-how-to-remove-a-workaround
-local helmapp = import "../../_templates/argo_helm_app.template";
-local argoapp = import "../../_templates/argo_app.template";
+local helmapp = import "../../_templates/argo_helm_app.libsonnet";
+local argoapp = import "../../_templates/argo_app.libsonnet";
 
 local vars = {
 	"version": "34.9.0",
diff --git a/k8s-manifests/reloader.jsonnet b/k8s-manifests/reloader.jsonnet
index 1356e12..ec105c5 100644
--- a/k8s-manifests/reloader.jsonnet
+++ b/k8s-manifests/reloader.jsonnet
@@ -1,5 +1,5 @@
 # vim:expandtab:
-local helmapp = import "../_templates/argo_helm_app.template";
+local helmapp = import "../_templates/argo_helm_app.libsonnet";
 
 [
 helmapp + {