diff --git a/modules/hetzner_server/main.tf b/modules/hetzner_server/main.tf
index 31a519e..befaf11 100644
--- a/modules/hetzner_server/main.tf
+++ b/modules/hetzner_server/main.tf
@@ -7,12 +7,12 @@ terraform {
 
 locals {
   # single naming scheme - propagates everywhere
-  key_name      = "${var.name}-key"
-  firewall_name = "${var.name}-fw"
+  ssh_key_name  = "${var.project_name}-key"
+  firewall_name = "${var.project_name}-fw"
 }
 
 resource "hcloud_ssh_key" "this" {
-  name       = local.key_name
+  name       = local.ssh_key_name
   public_key = var.ssh_public_key
 }
 
@@ -31,10 +31,10 @@ resource "hcloud_firewall" "this" {
 }
 
 resource "hcloud_server" "this" {
-  name         = var.name
-  image        = var.image
-  server_type  = var.server_type
-  location     = var.location
-  user_data    = var.user_data
+  name         = var.project_name
+  image        = var.hcloud_image
+  server_type  = var.hcloud_server_type
+  location     = var.hcloud_location
+  user_data    = var.init_user_data
   firewall_ids = [hcloud_firewall.this.id]
 }
\ No newline at end of file
diff --git a/modules/hetzner_server/variables.tf b/modules/hetzner_server/variables.tf
index 016e271..dd64239 100644
--- a/modules/hetzner_server/variables.tf
+++ b/modules/hetzner_server/variables.tf
@@ -1,6 +1,6 @@
-variable "name" {
+variable "project_name" {
   type        = string
-  description = "Host name (used as prefix for the SSH key and firewall)"
+  description = "Project / host name"
 }
 
 variable "ssh_public_key" {
@@ -8,29 +8,28 @@ variable "ssh_public_key" {
   description = "Public SSH key to manage the host"
 }
 
-variable "server_type" {
+variable "hcloud_server_type" {
   type        = string
   description = "Hetzner server type (e.g. cx22)"
 }
 
-variable "image" {
+variable "hcloud_image" {
   type        = string
   description = "OS image to boot (e.g. debian-13)"
 }
 
-variable "location" {
+variable "hcloud_location" {
   type        = string
   description = "Hetzner location (fsn1, nbg1, hel1, ash1)"
-  default     = "nbg1"
   validation {
-    condition     = contains(["fsn1", "nbg1", "hel1", "ash1"], var.location)
-    error_message = "location must be one of fsn1, nbg1, hel1, ash1."
+    condition     = contains(["fsn1", "nbg1", "hel1", "ash1"], var.hcloud_location)
+    error_message = "location must be one of fsn1, nbg1, hel1, ash1"
   }
 }
 
-variable "user_data" {
+variable "init_user_data" {
   type        = string
-  description = "Pre-rendered cloud-init user data (optional). Caller renders it from a template."
+  description = "Pre-rendered cloud-init user data (optional)"
   default     = null
 }