diff --git a/shells/cloud.nix b/shells/cloud.nix
index bc2f9092..1ee02782 100644
--- a/shells/cloud.nix
+++ b/shells/cloud.nix
@@ -9,8 +9,10 @@
 (buildFHSUserEnv {
   name = "cloud-admin-env";
   targetPkgs = pkgs: (with pkgs; [
-    awscli2
-    azure-cli
+    awscli2 # For Amazon Web Services.
+    azure-cli # For Microsoft Azure.
+
+    # For Google Cloud Platform.
     (google-cloud-sdk.withExtraComponents
       (with google-cloud-sdk.components; [
         gke-gcloud-auth-plugin
@@ -18,10 +20,13 @@
         cloud-run-proxy
       ])
     )
-    kubectl
-    hcloud
-    linode-cli
-    vultr-cli
+
+    kubectl # For managing Kubernetes cluster if it is on one.
+    hcloud # For Hetzner Cloud.
+    linode-cli # For Linode.
+    vultr-cli # For Vultr.
+
+    # It's here since Google Cloud SDK needs it.
     python3
   ]);
 }).env