diff --git a/envfile b/envfile
new file mode 100644
index 000000000..6457c9ca0
--- /dev/null
+++ b/envfile
@@ -0,0 +1,60 @@
+## DCP PROD
+export PROXMOX_URL="https://87.106.167.195:8006/api2/json"
+export PROXMOX_USERNAME='root@pam!capmox'
+export PROXMOX_TOKEN="9ccab4da-ed79-40df-a3bb-8cc7ef6cfad9"
+export PROXMOX_NODE="pve"
+export PROXMOX_ISO_POOL="local"
+export PROXMOX_BRIDGE="vmbr1"
+export PROXMOX_STORAGE_POOL="pmxpool01"
+
+## TXL
+export PROXMOX_URL="https://txl-ceph01.txl.profitbricks.net:8006/api2/json"
+export PROXMOX_USERNAME='root@pam!capmox'
+export PROXMOX_TOKEN="8fefd37b-6c77-41c8-af39-e497abc81732"
+export PROXMOX_NODE="txl-ceph01"
+export PROXMOX_ISO_POOL="iso-images"
+export PROXMOX_BRIDGE="vmbr29"
+export PROXMOX_STORAGE_POOL="rbd_pool_rbd"
+
+
+# stg
+export PROXMOX_URL="https://stg-ceph01.stg.profitbricks.net:8006/api2/json"
+export PROXMOX_USERNAME='root@pam!capi'
+export PROXMOX_TOKEN="0c780984-34da-43af-bc94-dd95dd8da101"
+export PROXMOX_NODE="stg-ceph01"
+export PROXMOX_ISO_POOL="iso-images"
+export PROXMOX_BRIDGE="vmbr128"
+export PROXMOX_STORAGE_POOL="rbd_pool_rbd"
+
+
+## flatcar
+export FLATCAR_VERSION=4081.1.0
+export FLATCAR_CHANNEL=beta
+export OEM_ID=nutanix
+
+"additional_iso_files": [
+    {
+        "device": "ide0",
+        "iso_storage_pool": "{{user `iso_storage_pool`}}",
+        "cd_files": ["{{user `http_directory`}}/{{user `version`}}/*"],
+        "cd_label": "cidata",
+        "unmount": true
+    }
+],
+
+
+I am closing this issue since using the following config can achieve offline installation in autoinstall.yaml
+
+  apt:
+    disable_components: []
+    primary: []
+    fallback: offline-install
+    preserve_sources_list: false
+
+
+https://www.aerialls.eu/posts/ubuntu-server-2204-image-packer-subiquity-for-proxmox/
+
+
+https://blog.devgenius.io/automate-your-proxmox-with-packer-dff95222cfe8
+
+https://forum.proxmox.com/threads/using-packer-to-deploy-ubuntu-20-04-to-proxmox.104275/
\ No newline at end of file
diff --git a/images/capi/packer/proxmox/README.md b/images/capi/packer/proxmox/README.md
index fb6141b4a..e3319b2ae 100644
--- a/images/capi/packer/proxmox/README.md
+++ b/images/capi/packer/proxmox/README.md
@@ -17,17 +17,11 @@ export ISO_FILE="local:iso/ubuntu-24.04.1-live-server-amd64.iso"
 
 ## Flatcar for Proxmox
 
-Currently, Proxmox doesn't support ignition and it's currently in-development.
+Currently, Proxmox support is only available in the `alpha` channel of Flatcar.
+* https://www.flatcar.org/releases#alpha-release
 * https://github.com/coreos/fedora-coreos-tracker/issues/1652
-* https://github.com/flatcar/scripts/pull/1783
 
-But we do a trick to make it working on Proxmox, until the support is already released.
-
-We use OEM_ID `nutanix` which is an openstack provider that loads ignition from device with label `config-2`:
-https://github.com/coreos/ignition/blob/main/internal/providers/nutanix/nutanix.go#L51
-
-Therefore, we build an image with `OEM_ID=nutanix` so that we can provide an ISO that contain the ignition file in `/openstack/latest/user_data`
-https://github.com/coreos/ignition/blob/main/internal/providers/nutanix/nutanix.go#L40C29-L40C56
+Therefore, we need to choose the right channel and version for flatcar along with `OEM_ID=proxmoxve`.
 
 **To build a Proxmox template for flatcar**
 
@@ -41,8 +35,8 @@ export PROXMOX_BRIDGE="vmbr1"
 export PROXMOX_STORAGE_POOL="ceph_pool"
 
 ## flatcar version
-export FLATCAR_VERSION=4081.1.0
-export FLATCAR_CHANNEL=beta
+export FLATCAR_VERSION=4152.0.0
+export FLATCAR_CHANNEL=alpha
 
-export OEM_ID=nutanix # make sure to choose OEM_ID=nutanix
+export OEM_ID=proxmoxve # make sure to choose OEM_ID=proxmoxve
 ```