diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 9b44ed2..519e166 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -3,8 +3,6 @@ image:
   entrypoint: [""]
 
 variables:
-  PACKER_LOG: 1          # enable detailed logging
-  PACKER_VAR_FILE: "vars.pkrvars.hcl"
   PACKER_CONFIG_DIR: $CI_PROJECT_DIR
 
 cache:
@@ -19,13 +17,14 @@ stages:
 .parallel:
   parallel:
     matrix:
-      - IMAGE: [ "flatcar" ]
+      - IMAGE:
+        - flatcar-stable
 
 validate:
   extends: .parallel
   stage: validate
   variables:
-    PACKER_WORKSPACE: images/$IMAGE
+    PACKER_WORKSPACE: images
   script:
     - packer init $PACKER_WORKSPACE
     - packer fmt -check $PACKER_WORKSPACE
@@ -34,11 +33,7 @@ validate:
 build-image:
   extends: .parallel
   stage: build
-  variables:
-    PACKER_FILE: images/$IMAGE/image.pkr.hcl
   script:
-    - |
-      packer build \
-        $PACKER_FILE
+    - packer build $IMAGE.pkr.hcl
   rules:
     - if: $CI_COMMIT_BRANCH == "main"
diff --git a/README.md b/README.md
index a55c7a4..d6e0fd6 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,6 @@ A collection of custom images on my Hetzner Cloud.
 
 ## Images
 
-| **Name** | **Version**       | **Path**         |
-| -------- | ----------------- | ---------------- |
-| Flatcar  | _Rolling release_ | `images/flatcar` |
+| **Name** | **Version**       | **Path**                        |
+| :------: | :---------------: | ------------------------------- |
+| Flatcar  | _Rolling release_ | `images/flatcar-stable.pkr.hcl` |
diff --git a/images/flatcar/image.pkr.hcl b/images/flatcar-stable.pkr.hcl
similarity index 74%
rename from images/flatcar/image.pkr.hcl
rename to images/flatcar-stable.pkr.hcl
index 2165e72..d4313c8 100644
--- a/images/flatcar/image.pkr.hcl
+++ b/images/flatcar-stable.pkr.hcl
@@ -2,14 +2,13 @@ packer {
   required_plugins {
     hcloud = {
       source  = "github.com/hetznercloud/hcloud"
-      version = ">= 1.6.0, <= 2.0.0"
+      version = ">= 1.6.0, < 2.0.0"
     }
   }
 }
 
-variable "channel" {
-  type    = string
-  default = "stable"
+locals {
+  flatcar_channel = "stable"
 }
 
 variable "hcloud_token" {
@@ -37,13 +36,13 @@ build {
   source "hcloud.flatcar" {
     name          = "x86"
     server_type   = "cx22"
-    snapshot_name = "flatcar-${var.channel}-amd64-${formatdate("YYYY-MM-DD", timestamp())}"
+    snapshot_name = "flatcar-${local.flatcar_channel}-amd64-${formatdate("YYYY-MM-DD", timestamp())}"
   }
 
   source "hcloud.flatcar" {
     name          = "arm"
     server_type   = "cax11"
-    snapshot_name = "flatcar-${var.channel}-arm64-${formatdate("YYYY-MM-DD", timestamp())}"
+    snapshot_name = "flatcar-${local.flatcar_channel}-arm64-${formatdate("YYYY-MM-DD", timestamp())}"
   }
 
   provisioner "shell" {
@@ -54,7 +53,7 @@ build {
       "chmod +x flatcar-install",
 
       # Install flatcar
-      "./flatcar-install -s -o hetzner -C ${var.channel}",
+      "./flatcar-install -s -o hetzner -C ${local.flatcar_channel}",
     ]
   }
 }